Patents 5556991 - 5557245

 

 

Patent 5556991: Maleimide compounds having improved in storage stability
(ORGANIC COMPOUNDS -- PART OF THE CLASS 532-570 SERIES : : : Hetero ring is five-membered consisting of one nitrogen and four carbons (e.g., halopyrrolidines, etc.) : Chalcogen attached directly to the five-membered hetero ring by nonionic bonding (e.g., 3-pyrrolidinols, etc.) : Chalcogen bonded directly to a ring carbon of the five-membered hetero ring which is adjacent to the ring nitrogen (e.g., 2-pyrrolidones, etc.) : And chalcogen bonded directly to the other ring carbon of the five-membered hetero ring which is adjacent to the ring nitrogen (e.g., succinimide, etc.) : Carbon to carbon unsaturation between ring members of the five-membered hetero ring (e.g., maleimide, etc.) : Double bond between ring carbons in each of the two nitrogen containing hetero rings (e.g., bis-maleimides, etc.))

Patent 5556992: Novel rhodamine derivatives for photodynamic therapy of cancer and in vitro purging of the leukemias
(ORGANIC COMPOUNDS -- PART OF THE CLASS 532-570 SERIES : : : Oxygen containing hetero ring (e.g., dioxirane, etc.) : Xanthene ring system having a benzene ring bonded directly thereto para to the xanthene ring oxygen, wherein the carbon of a -COO- group is bonded directly to the benzene ring ortho to its position of attachment to the xanthene ring system, and spirolactone derivatives thereof (e.g., fluoresceins, chlorofluorans, etc.) : Nitrogen bonded directly to the xanthene ring system (e.g., rhodols, aminofluorans, etc.) : Plural nitrogens bonded directly to the xanthene ring system (e.g., 2,6 diaminofluorans, etc.) : Rhodamines : Unsaturated carbocyclic ring or acyclic carbon to carbon unsaturation containing)

Patent 5556993: Compounds for the photodecontamination of pathogens in blood
(ORGANIC COMPOUNDS -- PART OF THE CLASS 532-570 SERIES : : : Oxygen containing hetero ring (e.g., dioxirane, etc.) : Lactones (i.e., -C(=X)O-, wherein X is chalcogen, is part of the hetero ring) : The lactone ring is six-membered : Polycyclo ring system having the lactone ring as one of the cyclos : Tricyclo ring system having the lactone ring as one of the cyclos : Plural ring oxygens in the tricyclo ring system : At least two additional chalcogens bonded directly to the tetracyclo ring system)

Patent 5556994: Cyclopropane derivatives and method of preparing the same
(ORGANIC COMPOUNDS -- PART OF THE CLASS 532-570 SERIES : : : Oxygen containing hetero ring (e.g., dioxirane, etc.) : Lactones (i.e., -C(=X)O-, wherein X is chalcogen, is part of the hetero ring) : The lactone ring is five-membered : Polycyclo ring system having the lactone ring as one of the cyclos : Bicyclo ring system having the lactone ring as one of the cyclos : The tricyclo ring system consists of the lactone ring, a five-membered carbocyclic ring, and a three-membered carbocyclic ring)

Patent 5556995: Process for the preparation of polyhydric phenol compounds
(ORGANIC COMPOUNDS -- PART OF THE CLASS 532-570 SERIES : : : Oxygen containing hetero ring (e.g., dioxirane, etc.) : The hetero ring is six-membered : Polycyclo ring system having the hetero ring as one of the cyclos : Bicyclo ring system having the hetero ring as one of the cyclos : The bicyclo ring system consists of the hetero ring and a six-membered carbocyclic ring : Carbocyclic ring bonded directly to the hetero ring of the bicyclo ring system (e.g., flavanes, etc.) : Chalcogen bonded directly to the ring carbon para to the ring oxygen (e.g., chromones, etc.))

Patent 5556996: Oxiranyls disubstituted with a phenyl group and a substituted chromanyl or tetrahydroquinolinyl group having retinoid like activity
(ORGANIC COMPOUNDS -- PART OF THE CLASS 532-570 SERIES : : : Oxygen containing hetero ring (e.g., dioxirane, etc.) : The hetero ring is six-membered : Polycyclo ring system having the hetero ring as one of the cyclos : Bicyclo ring system having the hetero ring as one of the cyclos : The bicyclo ring system consists of the hetero ring and a six-membered carbocyclic ring : Chalcogen or nitrogen attached indirectly to the hetero ring by acyclic nonionic bonding : Chalcogen bonded directly to the ring carbon para to the ring oxygen (e.g., chromones, etc.))

Patent 5556997: Enhanced synthesis of racemic metallocenes
(ORGANIC COMPOUNDS -- PART OF THE CLASS 532-570 SERIES : : HEAVY METAL CONTAINING (e.g., Ga, In or T1, etc.) : Silicon containing : Heavy metal bonded directly to unsaturated five-membered carbocyclic ring : Chalcogen containing preservative or stabilizer)

Patent 5556998: Transition metal complex, process for the preparation of the same, and asymmetric hydrogenation catalyst comprising the same
(ORGANIC COMPOUNDS -- PART OF THE CLASS 532-570 SERIES : : HEAVY METAL CONTAINING (e.g., Ga, In or T1, etc.) : Phosphorus containing : Carbon bonded directly to the phosphorus : Plural carbons bonded directly to the phosphorus : Exactly three carbons bonded directly to the phosphorus (e.g., triphenylphosphines, etc.) :)

Patent 5556999: Alkoxysilane composition inhibited from disproportionation reaction
(ORGANIC COMPOUNDS -- PART OF THE CLASS 532-570 SERIES : : SILICON CONTAINING : With preservative or stabilizer : Reactants include unsaturated hydrocarbon and compound having carbon bonded directly to aluminum)

Patent 5557000: Silicone oil for low temperature use
(ORGANIC COMPOUNDS -- PART OF THE CLASS 532-570 SERIES : : SILICON CONTAINING : Plural silicons bonded directly to the same carbon or attached by a chain consisting of carbons, which carbons may be part of a ring : Two silicons bonded directly to the same oxygen : Two silicons bonded directly to the same oxygen)

Patent 5557001: Silicone monomer process
(ORGANIC COMPOUNDS -- PART OF THE CLASS 532-570 SERIES : : SILICON CONTAINING : Carbon attached directly or indirectly to the silicon by nonionic bonding (e.g., silanes, etc.) : Processes : Forming group containing silicon and carbon bonded directly to the same oxygen (e.g., esters, etc.) : Bonded directly to each other)

Patent 5557002: Process for the preparation of biphenyl containing intermediates useful in making angiotensin II receptor antagonists
(ORGANIC COMPOUNDS -- PART OF THE CLASS 532-570 SERIES : : Sulfonate esters (i.e., compounds having the sulfonate group, -O-S(=O)(=O) , wherein the single bonded oxygen is bonded directly to carbon, which carbon may be single bonded to any atom but may be multiple bonded only to carbon) : Plural alkyl groups, or hydrogen and an alkyl group, bonded directly to the sulfate group, wherein the hydrogen may be replaced by substituted or unsubstituted ammonium, or by a Group IA or IIA light metal (e.g., ethyl hydrogen sulfate, methyl ammonium sulfate, diethyl sulfate, etc.))

Patent 5557003: Alkylphenoxy substituted bis (thio phosphoryl) amines
(ORGANIC COMPOUNDS -- PART OF THE CLASS 532-570 SERIES : : Phosphorus esters (i.e., compounds having the phosphorus ester group, wherein trivalent or pentavalent phosphorus and carbon are bonded directly to the same divalent chalcogen, and wherein the carbon may be single bonded to any atom but may be multiple bonded only to carbon) : Plural phosphori attached directly or indirectly to each other by nonionic bonding : Purification or recovery)

Patent 5557004: Process for production of aliphatic.alpha..omega.aminonitriles
(ORGANIC COMPOUNDS -- PART OF THE CLASS 532-570 SERIES : : Nitriles (i.e., compounds having cyano bonded directly to carbon, which carbon may be single bonded to any atom but may be multiple bonded only to carbon) : Acyclic (e.g., purification of saturated nitriles, etc.) : Nitrogen attached indirectly to the cyano group by nonionic bonding : Hydrogenation of dinitriles, or displacement of halo, hydroxy, or alkoxy by ammonia or substituted ammonia : A carbon in the chain is multiple bonded to carbon (e.g., 1,4 dicyanobutene, etc.))

Patent 5557005: Process for preparing 3-chloroanthranilic alkyl esters of high purity from 3-chloroanthranilic acid
(ORGANIC COMPOUNDS -- PART OF THE CLASS 532-570 SERIES : : Carboxylic acid esters : Aromatic acid moiety : Nitrogen in acid moiety other than as nitroso or isocyanate (e.g., amino acid esters, etc.) : Halogen in acid moiety : Benzoic acid substituted on ring with oxy and nitrogen)

Patent 5557006: 1-Alkyl-, 1-alkenyl-, and 1-alkynylaryl-2-amino-1,3-propanediols and related compounds
(ORGANIC COMPOUNDS -- PART OF THE CLASS 532-570 SERIES : : Carboxylic acid esters : Aromatic acid moiety : Monocyclic acid moiety : Carboxyl, not bonded directly to a ring, in acid moiety : Esterification of acid, salt, acid halide or anhydride with alcohol)

Patent 5557007: Unsaturated polylactone acrylates and derivatives thereof
(ORGANIC COMPOUNDS -- PART OF THE CLASS 532-570 SERIES : : Carboxylic acid esters : Acyclic acid moiety : Oxy in acid moiety : Unsaturation in acid moiety : Polyoxy alcohol moiety)

Patent 5557008: Process for the introduction of fluoro substituents
(ORGANIC COMPOUNDS -- PART OF THE CLASS 532-570 SERIES : : Carboxylic acid esters : Acyclic acid moiety : Esterified phenolic hydroxy : Sulfur, nitrogen, halogen, oxy, or aldehyde or ketone group in acid moiety : Rings bonded directly to each other in phenolic moiety)

Patent 5557009: Process for preparing an aqueous slurry of terephthalic acid
(ORGANIC COMPOUNDS -- PART OF THE CLASS 532-570 SERIES : : Carboxylic acids and salts thereof : Aromatic : Formation of carboxyl group by oxidation : Of aromatic compound : Alkyl side chain oxidized : Air, oxygen, or ozone oxidant :)

Patent 5557010: Preparation of a 2,3-dihaloperfluorocarbonyl halide
(ORGANIC COMPOUNDS -- PART OF THE CLASS 532-570 SERIES : : Carboxylic halides (i.e., compounds having the -C(=O)-halo group) : Fluorine is the halogen (i.e., carboxylic fluorides) : Processes for forming the carbonyl group : Halogen attached indirectly to the sulfur by nonionic bonding)

Patent 5557011: Preparation of diamines
(ORGANIC COMPOUNDS -- PART OF THE CLASS 532-570 SERIES : : AMINO NITROGEN CONTAINING (E.G., UREA, SULFONAMIDES, NITROSAMINES, OXYAMINES, ETC., AND SALTS THEREOF) : Acyclic : Forming amine group directly by reduction : Of cyano : Of plural cyanos : Preparing hexamethylene diamine : Group VIII noble metal containing catalyst utilized)

Patent 5557012: Fluorination of acetals, ketals and orthoesters
(ORGANIC COMPOUNDS -- PART OF THE CLASS 532-570 SERIES : : Carboxylic acids and salts thereof : Acyclic : Oxy : Polycarboxylic : Glutamic acid per se or salt thereof)

Patent 5557013: Preparation of O-substituted hydroxylammonium salts
(ORGANIC COMPOUNDS -- PART OF THE CLASS 532-570 SERIES : : AMINO NITROGEN CONTAINING (E.G., UREA, SULFONAMIDES, NITROSAMINES, OXYAMINES, ETC., AND SALTS THEREOF) : Nitroxides, oxyamines or hydroxylamines (i.e., HNH-O or HNH-OH, wherein substitution may be made for hydrogen only, including O-ether and O-ester derivatives) : Acyclic : Processes)

Patent 5557014: Catalytic system for olefin oxidation to carbonyl products
(ORGANIC COMPOUNDS -- PART OF THE CLASS 532-570 SERIES : : OXYGEN CONTAINING (E.G., PERCHLORYLBENZENE, ETC.) : Ketones : Acyclic : Processes : Oxidation of organic compound utilizing gaseous oxygen : Unsaturated acyclic hydrocarbon reactant : Ag, Au, Pd, Pt, Rh, Ir, Ru, or Os containing catalyst utilized :)

Patent 5557015: Method of preparing hydrazine nitroform
(ORGANIC COMPOUNDS -- PART OF THE CLASS 532-570 SERIES : : AMINO NITROGEN CONTAINING (E.G., UREA, SULFONAMIDES, NITROSAMINES, OXYAMINES, ETC., AND SALTS THEREOF) : Acyclic : Aminimine or hydrazine containing : Bicyclo ring system)

Patent 5557016: Process for producing alkadienols
(ORGANIC COMPOUNDS -- PART OF THE CLASS 532-570 SERIES : : OXYGEN CONTAINING (E.G., PERCHLORYLBENZENE, ETC.) : Hydroxy containing (H of -OH may be replaced by a Group IA or IIA light metal) : Acyclic : Ethylenic unsaturation containing : Ethylenically unsaturated hydroxy compound produced)

Patent 5557017: Method for producing a hydrofluorocarbon
(ORGANIC COMPOUNDS -- PART OF THE CLASS 532-570 SERIES : : HALOGEN CONTAINING : Fluorine containing : Replacing halogen with hydrogen : Utilizing unsaturated compound)

Patent 5557018: Partially flourinated polymers and process therefor
(ORGANIC COMPOUNDS -- PART OF THE CLASS 532-570 SERIES : : HALOGEN CONTAINING : Fluorine containing : Product : Acyclic : Unsaturated :)

Patent 5557019: Method for preparing dichlorodecafluoropentane and decafluoropentane
(ORGANIC COMPOUNDS -- PART OF THE CLASS 532-570 SERIES : : HALOGEN CONTAINING : Fluorine containing : Replacing halogen with hydrogen : Utilizing unsaturated compound)

Patent 5557020: High-purity perfluoro-4-methyl-2-pentene and its preparation and use
(ORGANIC COMPOUNDS -- PART OF THE CLASS 532-570 SERIES : : HALOGEN CONTAINING : Fluorine containing : Purification or recovery : Utilizing unsaturated compound)

Patent 5557021: Phillips catalyst and its use for the preparation of ethylene/.alpha.-olefin copolymers
(CHEMISTRY OF HYDROCARBON COMPOUNDS : UNSATURATED COMPOUND SYNTHESIS : By addition of entire unsaturated molecules, e.g., polymerization, etc. : Definite molecular weight product, e.g., dimer, etc. : Using catalyst containing metal bonded to or complexed with C, C-containing compound, or H : Al-and transition metal-containing : And N-, P-, or S-containing :)

Patent 5557022: Aromatization process
(CHEMISTRY OF HYDROCARBON COMPOUNDS : AROMATIC COMPOUND SYNTHESIS : By ring formation from nonring moiety, e.g., aromatization, etc. : Using transition metal-containing catalyst)

Patent 5557023: Olefin oligomerization in the presence of novel complexes
(CHEMISTRY OF HYDROCARBON COMPOUNDS : UNSATURATED COMPOUND SYNTHESIS : By addition of entire unsaturated molecules, e.g., polymerization, etc. : Definite molecular weight product, e.g., dimer, etc. : Using catalyst containing metal bonded to or complexed with C, C-containing compound, or H : Al-and transition metal-containing : And N-, P-, or S-containing :)

Patent 5557024: Process for preparing short chain alkyl aromatic compounds
(CHEMISTRY OF HYDROCARBON COMPOUNDS : AROMATIC COMPOUND SYNTHESIS : By condensation of entire molecules or entire hydrocarbyl moieties thereof, e.g., alkylation, etc. : Using metal, metal oxide, or hydroxide catalyst : B trifluoride in a complex or with additional nonhydrocarbon agent)

Patent 5557025: Hyperpure propylene polymer
(CHEMISTRY OF HYDROCARBON COMPOUNDS : UNSATURATED COMPOUND SYNTHESIS : By addition of entire unsaturated molecules, e.g., polymerization, etc. : Using extraneous nonhydrocarbon agent, e.g., catalyst, etc. : Hydride or organic compound or complex containing alkaline-, B-, or Zn group material : Al trialkyl : And N-, P-, or S-containing)

Patent 5557026: Method for oligomerizing an .alpha.-olefin
(CHEMISTRY OF HYDROCARBON COMPOUNDS : UNSATURATED COMPOUND SYNTHESIS : By addition of entire unsaturated molecules, e.g., polymerization, etc. : Using extraneous nonhydrocarbon agent, e.g., catalyst, etc. : Hydride or organic compound or complex containing alkaline-, B-, or Zn group material : Al trialkyl : And N-, P-, or S-containing)

Patent 5557027: Oligomerization catalyst and process
(CHEMISTRY OF HYDROCARBON COMPOUNDS : UNSATURATED COMPOUND SYNTHESIS : By addition of entire unsaturated molecules, e.g., polymerization, etc. : Using extraneous nonhydrocarbon agent, e.g., catalyst, etc. : N- or P-containing catalyst : Transition metal-containing)

Patent 5557028: Alkylation reactions
(CHEMISTRY OF HYDROCARBON COMPOUNDS : SATURATED COMPOUND SYNTHESIS : By condensation of a paraffin molecule with an olefin-acting molecule, e.g., alkylation, etc. : Using extraneous nonhydrocarbon agent : HF : With additional nonhydrocarbon agent : Cr, Mo, or W)

Patent 5557029: Isomerization of saturated hydrocarbons
(CHEMISTRY OF HYDROCARBON COMPOUNDS : SATURATED COMPOUND SYNTHESIS : By isomerization : Using aluminosilicate catalyst : O-containing)

Patent 5557030: Process for rejecting heavy hydrocarbons from light hydrocarbons gases
(CHEMISTRY OF HYDROCARBON COMPOUNDS : PURIFICATION, SEPARATION, OR RECOVERY : By contact with solid sorbent : With specified sorbent rehabilitation procedure or agent, e.g., desorbent, etc. : O-containing sorbate)

Patent 5557031: Use of electric arc furnace by-products in concrete
(COMPOSITIONS: COATING OR PLASTIC : : Inorganic settable ingredient containing : Organic garbage, refuse sewage, or waste material containing or treating (other than sulfite waste liquor) : Organic material containing)

Patent 5557032: Knockout mice
(MULTICELLULAR LIVING ORGANISMS AND UNMODIFIED PARTS THEREOF AND RELATED PROCESSES : METHOD OF USING A TRANSGENIC NONHUMAN ANIMAL IN AN IN VIVO TEST METHOD (E.G., DRUG EFFICACY TESTS, ETC.) :)

Patent 5557033: Method of increasing egg production in avian species by active immunization against vasoactive intestinal peptide
(MULTICELLULAR LIVING ORGANISMS AND UNMODIFIED PARTS THEREOF AND RELATED PROCESSES : NONHUMAN ANIMAL : The protein is isolated or extracted from milk)

Patent 5557034: Inbred corn line PHN18
(MULTICELLULAR LIVING ORGANISMS AND UNMODIFIED PARTS THEREOF AND RELATED PROCESSES : METHOD OF USING A PLANT OR PLANT PART IN A BREEDING PROCESS WHICH INCLUDES A STEP OF SEXUAL HYBRIDIZATION : Method of breeding using gametophyte control : Molecular marker is used)

Patent 5557035: Hybrid corn plant & seed (3489)
(MULTICELLULAR LIVING ORGANISMS AND UNMODIFIED PARTS THEREOF AND RELATED PROCESSES : METHOD OF USING A PLANT OR PLANT PART IN A BREEDING PROCESS WHICH INCLUDES A STEP OF SEXUAL HYBRIDIZATION : Method of breeding maize : Via a male sterility genetic trait)

Patent 5557036: Dark red kidney bean variety and method of production
(MULTICELLULAR LIVING ORGANISMS AND UNMODIFIED PARTS THEREOF AND RELATED PROCESSES : PLANT, SEEDLING, PLANT SEED, OR PLANT PART, PER SE : Higher plant, seedling, plant seed, or plant part (i.e., angiosperms or gymnosperms) : Bean : The plant is maize)

Patent 5557037: Soybeans having elevated contents of saturated fatty acids
(MULTICELLULAR LIVING ORGANISMS AND UNMODIFIED PARTS THEREOF AND RELATED PROCESSES : PLANT, SEEDLING, PLANT SEED, OR PLANT PART, PER SE : Higher plant, seedling, plant seed, or plant part (i.e., angiosperms or gymnosperms) : Soybean : The plant is maize)

Patent 5557038: Inbred maize line PHTP9
(MULTICELLULAR LIVING ORGANISMS AND UNMODIFIED PARTS THEREOF AND RELATED PROCESSES : METHOD OF USING A PLANT OR PLANT PART IN A BREEDING PROCESS WHICH INCLUDES A STEP OF SEXUAL HYBRIDIZATION : Method of breeding maize : Via a male sterility genetic trait)

Patent 5557039: Materials evaluator
(MEASURING AND TESTING : BY ABRASION, MILLING, RUBBING, OR SCUFFING : Roughness or hardness)

Patent 5557040: Method and apparatus for precipitation detection and differentiation
(MEASURING AND TESTING : METEOROLOGY : Precipitation (e.g., rain gauge) : Sensing accumulated amount (e.g, rain gauge) : Electric sensor)

Patent 5557041: Modified water meter arrangements
(MEASURING AND TESTING : VOLUME OR RATE OF FLOW : Element : Casing : Single diaphragm)

Patent 5557042: Impedance detector, in particular for radiosonde operation, as well as a process for the manufacture of a detector
(MEASURING AND TESTING : GAS ANALYSIS : Moisture content or vapor pressure : Hygrometer : With electric circuitry or electric circuit component detail : Impedance : Plural coil springs)

Patent 5557043: Apparatus for fixing an adhesive balancing weight to a vehicle wheel
(MEASURING AND TESTING : ROTOR UNBALANCE : Dynamic (spinning) : With counterbalancing means : Stroboscopically illuminated)

Patent 5557044: Low stress magnet interface
(MEASURING AND TESTING : SPEED, VELOCITY, OR ACCELERATION : Temperature compensator : Installed in rotary speed source)

Patent 5557045: Vibrating gyroscope
(MEASURING AND TESTING : SPEED, VELOCITY, OR ACCELERATION : Angular rate using gyroscopic or Coriolis effect : Vibratory mass : Elongated element with spaced supports : Safety feature)

Patent 5557046: Micromachined rate and acceleration sensor
(MEASURING AND TESTING : SPEED, VELOCITY, OR ACCELERATION : Angular rate using gyroscopic or Coriolis effect : Multisensor for both angular rate and linear acceleration : Vibratory mass : Safety feature)

Patent 5557047: Method and apparatus for ultrasonic wave measurement
(MEASURING AND TESTING : VIBRATION : By mechanical waves : Beamed : Velocity or propagation time measurement : Horizontal fulcrum)

Patent 5557048: Stress evaluation method and apparatus therefor
(MEASURING AND TESTING : VIBRATION : By mechanical waves : Beamed : Velocity or propagation time measurement : Horizontal fulcrum)

Patent 5557049: Disposable manometer for use with a CPR bag
(MEASURING AND TESTING : FLUID PRESSURE GAUGE : Diaphragm : Vibrating strip or wire)

Patent 5557050: System for metering gas supplied under high pressure
(MEASURING AND TESTING : VOLUME OR RATE OF FLOW : With indirect temperature or density compensation : Electrical : Weight actuated (e.g., tipping bucket))

Patent 5557051: Device for measuring the velocity of a fluid flowing in a flow channel of a conduit
(MEASURING AND TESTING : VOLUME OR RATE OF FLOW : By measuring vibrations or acoustic energy : Caused by fluid interaction with obstacle : Vortex shedders : Including electrically interconnected or synchronized input and output circuit)

Patent 5557052: Keyboard musical instrument having variable contact point between jack and regulation button
(MUSIC : INSTRUMENTS : Stringed : Pianos : Hammers actions : Details : Standard type)

Patent 5557053: Snare strainer for a drum
(MUSIC : INSTRUMENTS : Drums : Snares : With electric action)

Patent 5557054: Foot pedal for a drum
(MUSIC : INSTRUMENTS : Drum and cymbal beaters : Practice Pads)

Patent 5557055: Musical keyboard having an electronically controlled display and a method of keyboard display
(MUSIC : ACCESSORIES : Teaching devices : Indicators : For keyboard : Resistance)

Patent 5557056: Performance evaluator for use in a karaoke apparatus
(MUSIC : INSTRUMENTS : Electrical musical tone generation : Data storage : Digital memory circuit (e.g., RAM, ROM, etc.) : Note sequence : Accompaniment :)

Patent 5557057: Electronic keyboard instrument
(MUSIC : INSTRUMENTS : Electrical musical tone generation : Data storage : Digital memory circuit (e.g., RAM, ROM, etc.) : Selecting circuits : Multiplexing or scanning : Reiteration)

Patent 5557058: Signal blender for three or more musical instrument pickups
(MUSIC : INSTRUMENTS : Electrical musical tone generation : Transducers : Tone synthesis or timbre control : Reed)

Patent 5557059: Tubeless cased telescoped ammunition
(AMMUNITION AND EXPLOSIVES : CARTRIDGES : Telescoping powder charge : Telescoping powder charge)

Patent 5557060: Developing device
(ELECTROPHOTOGRAPHY : IMAGE FORMATION : Development : Dry development : Application member : Roller : Regulating (e.g., doctor) : By magnetic brush)

Patent 5557061: High temperature stable, low input energy primer/detonator
(EXPLOSIVE AND THERMIC COMPOSITIONS OR CHARGES : CONTAINING NITRATED METALLO-ORGANIC COMPOUND : Nitrated organic compound of lead : With metal azide or metal fulminate compound : Dispersed solid contains inorganic explosive or inorganic thermic component)

Patent 5557062: Breathable gas generators
(EXPLOSIVE AND THERMIC COMPOSITIONS OR CHARGES : CONTAINING INORGANIC NITROGEN-OXYGEN SALT : Ammonium nitrate : Inorganic nitrogen-oxygen salt)

Patent 5557063: Electronic component enclosure for RF shielding
(ELECTRICITY: CONDUCTORS AND INSULATORS : ANTI-INDUCTIVE STRUCTURES : Shielded or screened : Gaskets, covers : Spark plugs)

Patent 5557064: Conformal shield and method for forming same
(ELECTRICITY: CONDUCTORS AND INSULATORS : ANTI-INDUCTIVE STRUCTURES : Shielded or screened : Materials, stock and screen rooms : Spark plugs)

Patent 5557065: Overvoltage protectors sealed with gel
(ELECTRICITY: CONDUCTORS AND INSULATORS : BOXES AND HOUSINGS : With electric device or mounting means therefor : Sealed : Foil or flat lead-in)

Patent 5557066: Molding compounds having a controlled thermal coefficient of expansion, and their uses in packaging electronic devices
(ELECTRICITY: CONDUCTORS AND INSULATORS : BOXES AND HOUSINGS : With electric device or mounting means therefor : Sealed : Flat housing for electronic device (e.g., flat pack, dual-in-line package) : Gas filled)

Patent 5557067: Pole mounted terminal housing
(ELECTRICITY: CONDUCTORS AND INSULATORS : BOXES AND HOUSINGS : With electric device or mounting means therefor : With connectors : With box or housing mounting means)

Patent 5557068: Capacitive coupled BNC connector
(ELECTRICITY: CONDUCTORS AND INSULATORS : BOXES AND HOUSINGS : With electric device or mounting means therefor : With connectors : With box or housing mounting means)

Patent 5557069: Electrical spring connector having improved shell for controlling spring expansion
(ELECTRICITY: CONDUCTORS AND INSULATORS : CONDUITS, CABLES OR CONDUCTORS : Combined : With joints : Angular : Spark plugs)

Patent 5557070: Ergonomic twist-on wire connector cap
(ELECTRICITY: CONDUCTORS AND INSULATORS : CONDUITS, CABLES OR CONDUCTORS : Combined : With joints : Angular : Spark plugs)

Patent 5557071: Armored cable
(ELECTRICITY: CONDUCTORS AND INSULATORS : CONDUITS, CABLES OR CONDUCTORS : Insulated : With identifying means : Overlapping or interlocking)

Patent 5557072: Superconductive conductor presenting improved protection against partial transitions
(ELECTRICITY: CONDUCTORS AND INSULATORS : CONDUITS, CABLES OR CONDUCTORS : Superconductors : Epoxy)

Patent 5557073: Cable seal
(ELECTRICITY: CONDUCTORS AND INSULATORS : INSULATORS : Through wall or plate : Strings and stacks)

Patent 5557074: Coaxial line assembly of a package for a high frequency element
(ELECTRICITY: CONDUCTORS AND INSULATORS : INSULATORS : Through wall or plate : Bushing type : Glass-to-metal seal : Grommets)

Patent 5557075: Parallel flexible transmission cable
(ELECTRICITY: CONDUCTORS AND INSULATORS : CONDUITS, CABLES OR CONDUCTORS : Preformed panel circuit arrangement (e.g., printed circuit) : Convertible shape (e.g., flexible) or circuit (e.g., breadboard) : Stud or nipple)

Patent 5557076: Cordless position detection apparatus
(TELEGRAPHY : SYSTEMS : Position coordinate determination for writing (e.g., writing digitizer pad, stylus, or circuitry) : Writing digitizer pad : Overlap)

Patent 5557077: Hearing-protector plug
(ACOUSTICS : ANATOMIC OR PROSTHETIC RELATION : Ear and mouth : Auditory canal insert : Ear insert : Underwater)

Patent 5557078: Acoustical barrier
(ACOUSTICS : SOUND-MODIFYING MEANS : Mechanical vibration attenuator : Damping of flexural structure : Partial enclosure or shroud)

Patent 5557079: Electronic device with shielded keypad interface
(ELECTRICITY: CIRCUIT MAKERS AND BREAKERS : MULTIPLE CIRCUIT CONTROL : Multiple switch : With independent operators :)

Patent 5557080: Switching device
(ELECTRICITY: CIRCUIT MAKERS AND BREAKERS : MULTIPLE CIRCUIT CONTROL : Multiple switch :)

Patent 5557081: Vehicle lamp slide switch including detent assembly
(ELECTRICITY: CIRCUIT MAKERS AND BREAKERS : MULTIPLE CIRCUIT CONTROL : Reciprocating contact : Spring-biased : Leaf spring contacts)

Patent 5557082: Circuit breaker with common trip mechanism
(ELECTRICITY: CIRCUIT MAKERS AND BREAKERS : INTERLOCKING : Between plural switches : Alternately operated : Pivot : Adjustable cycle for seasonal change)

Patent 5557083: Vacuum circuit breaker and electric contact
(HIGH-VOLTAGE SWITCHES WITH ARC PREVENTING OR EXTINGUISHING DEVICES : ARC PREVENTING OR EXTINGUISHING DEVICES : Vacuum : Single-pole : Contact structure : Plural series connected)

Patent 5557084: Temperature compensating fuel dispenser
(REGISTERS : LIQUID REGISTERS : Volume and price : Rhythm cycle (fertility))

Patent 5557085: Method and device for electronic identification
(REGISTERS : SYSTEMS CONTROLLED BY DATA BEARING RECORDS : Credit or identification card systems : Price determination)

Patent 5557086: Game machine system with money-processing station
(REGISTERS : SYSTEMS CONTROLLED BY DATA BEARING RECORDS : Credit or identification card systems : Price determination)

Patent 5557087: Multiple-merchant credit card terminal
(REGISTERS : SYSTEMS CONTROLLED BY DATA BEARING RECORDS : Credit or identification card systems : Price determination)

Patent 5557088: Self-scanning POS system, self-scanning registration terminal, control apparatus for self-scanning registration terminal and POS apparatus for
(REGISTERS : SYSTEMS CONTROLLED BY DATA BEARING RECORDS : Mechanized store : Permitting access)

Patent 5557089: Card reader system and method of operation
(REGISTERS : CODED RECORD SENSORS : Particular sensor structure : Multiple sensor : With tabular chart, scale, or graph)

Patent 5557090: Card having a ferromagnetic track and reader therefor
(REGISTERS : CODED RECORD SENSORS : Particular sensor structure : Magnetic : Raised or depressed portions on record)

Patent 5557091: Method and system for bar code image processing
(REGISTERS : CODED RECORD SENSORS : Particular sensor structure : Optical : Bar code : Bar code location or selection : Matrix of cells)

Patent 5557092: Apparatus and method for 16-bit and numeric data collection using bar code symbologies
(REGISTERS : CODED RECORD SENSORS : Particular sensor structure : Optical : Bar code : Means to decode multiple types or formats of bar code symbols (e.g., UPC, JAN, EAN, etc.) : Matrix of cells)

Patent 5557093: Compact projection laser scanner for producing a narrowly confined scanning volume for omni-directional scanning of code symbols therein,
(REGISTERS : CODED RECORD SENSORS : Particular sensor structure : Optical : Bar code : Specific scanning detail (e.g., scanner with a specific scanning field of view) : Including object detection)

Patent 5557094: False-transition inhibitor circuit for a bar code reader
(REGISTERS : CODED RECORD SENSORS : Particular sensor structure : Optical : Bar code : Reader processing circuitry : Noise reduction circuit (e.g., electrical filters) : Using an imager (e.g., CCD or camera-type reader))

Patent 5557095: System for enabling decoding of bar code and other symbols with a digital microcomputer connected via the input/output port thereof to
(REGISTERS : CODED RECORD SENSORS : Particular sensor structure : Optical : Bar code : Programming or computer interface feature : Including an imager (e.g., CCD or camera-type reader))

Patent 5557096: Multiple sheet electronic delivery tag
(REGISTERS : RECORDS : Conductive : Aligning records)

Patent 5557097: Cytological system autofocus integrity checking apparatus
(RADIANT ENERGY : PHOTOCELLS; CIRCUITS AND APPARATUS : Photocell controls its own optical systems : Automatic focus control : Of a microscope : With a collimator)

Patent 5557098: System to identify bags disinfected by irradiation which punches holes in a polarized portion of the bag to indicate processing thereof
(RADIANT ENERGY : PHOTOCELLS; CIRCUITS AND APPARATUS : Optical or pre-photocell system : Controlled by article, person, or animal : Inanimate article : Tape, drum, or disc types)

Patent 5557099: Signal device for turbo-engines using an optical probe with an elliptical shaped light beam
(RADIANT ENERGY : PHOTOCELLS; CIRCUITS AND APPARATUS : Optical or pre-photocell system : Light conductor : Electronic switch)

Patent 5557100: Flatness-measuring roller for a continuously manufactured strip by analyzing the birefringence caused by the application of lateral force
(RADIANT ENERGY : PHOTOCELLS; CIRCUITS AND APPARATUS : Optical or pre-photocell system : Light conductor : Condition responsive light guide (e.g., light guide is physically affected by parameter sensed which results in light conveyed to the photocell) : With detection of fiber microbend caused by parameter affecting fiber : Vacuum tube type)

Patent 5557101: Reel table revolution detector for use in a video cassette recorder
(RADIANT ENERGY : PHOTOCELLS; CIRCUITS AND APPARATUS : Optical or pre-photocell system : Light valve (e.g., iris diaphragm) : Actuated by dynamic external physical quantity : Shaft angle transducers : Bottles)

Patent 5557102: Testing apparatus for the calibration of overheating and rail brake locating devices
(RADIANT ENERGY : CALIBRATION OR STANDARDIZATION METHODS :)

Patent 5557103: Method of analyzing drilling fluids
(RADIANT ENERGY : GEOLOGICAL TESTING OR IRRADIATION : With sampling :)

Patent 5557104: Method and apparatus for determining crystallographic characteristics in response to confidence factors
(RADIANT ENERGY : INSPECTION OF SOLIDS OR LIQUIDS BY CHARGED PARTICLES : Methods : Magnetic field path-bending means)

Patent 5557105: Pattern inspection apparatus and electron beam apparatus
(RADIANT ENERGY : INSPECTION OF SOLIDS OR LIQUIDS BY CHARGED PARTICLES : Electron probe type : Magnetic field path-bending means)

Patent 5557106: Rodent discriminator lens
(RADIANT ENERGY : INVISIBLE RADIANT ENERGY RESPONSIVE ELECTRIC SIGNALLING : Infrared responsive : With beam deflector or focussing means : With periodic beam varying means)

Patent 5557107: Device for the real time location of radiation sources
(RADIANT ENERGY : INVISIBLE RADIANT ENERGY RESPONSIVE ELECTRIC SIGNALLING : With or including a luminophor : With relative movement means)

Patent 5557108: Integrated substance detection and identification system
(RADIANT ENERGY : INVISIBLE RADIANT ENERGY RESPONSIVE ELECTRIC SIGNALLING : Neutron responsive means : Composition analysis : Spark chambers)

Patent 5557109: Radiation sterilization unit
(RADIANT ENERGY : SUPPORTED FOR NONSIGNALLING OBJECTS OF IRRADIATION (E.G., WITH CONVEYOR MEANS) : With source support : Source and object encasement (e.g., sterilizers) : With a flow-modifying surface)

Patent 5557110: Aperture for use in electron beam system for pattern writing
(RADIANT ENERGY : IRRADIATION OF OBJECTS OR MATERIAL : Irradiation of semiconductor devices : Variable beam : Plural planar layer type)

Patent 5557112: Dual radiation ultraviolet lamp
(RADIANT ENERGY : RADIANT ENERGY GENERATION AND SOURCES : With radiation modifying member : Ultraviolet or infrared source : Plural planar layer type)

Patent 5557113: Method and structure for generating a surface image of a three dimensional target
(RADIANT ENERGY : PHOTOCELLS; CIRCUITS AND APPARATUS : With circuit for evaluating a web, strand, strip, or sheet : Measuring position : Determining range from detector : With translucent material)

Patent 5557114: Optical fet
(ACTIVE SOLID-STATE DEVICES (E.G., TRANSISTORS, SOLID-STATE DIODES) : NON-SINGLE CRYSTAL, OR RECRYSTALLIZED, SEMICONDUCTOR MATERIAL FORMS PART OF ACTIVE JUNCTION (INCLUDING FIELD-INDUCED ACTIVE JUNCTION) : Amorphous semiconductor material : Field effect device in amorphous semiconductor material : In array having structure for use as imager or display, or with transparent electrode : High temperature (i.e., >30o Kelvin))

Patent 5557115: Light emitting semiconductor device with sub-mount
(ACTIVE SOLID-STATE DEVICES (E.G., TRANSISTORS, SOLID-STATE DIODES) : INCOHERENT LIGHT EMITTER STRUCTURE : In combination with or also constituting light responsive device : With specific housing or contact structure : Recrystallized semiconductor material)

Patent 5557116: Semiconductor laser device and resin layer
(ACTIVE SOLID-STATE DEVICES (E.G., TRANSISTORS, SOLID-STATE DIODES) : INCOHERENT LIGHT EMITTER STRUCTURE : Encapsulated : Plural heterojunctions in same device)

Patent 5557117: Heterojunction bipolar transistor and integrated circuit device using the same
(ACTIVE SOLID-STATE DEVICES (E.G., TRANSISTORS, SOLID-STATE DIODES) : HETEROJUNCTION DEVICE : Light responsive structure : With large area flexible electrodes in press contact with opposite sides of active semiconductor chip and surrounded by an insulating element, (e.g., ring))

Patent 5557118: Hetero-junction type bipolar transistor
(ACTIVE SOLID-STATE DEVICES (E.G., TRANSISTORS, SOLID-STATE DIODES) : HETEROJUNCTION DEVICE : Bipolar transistor : Doping on side of heterojunction with lower carrier affinity (e.g., high electron mobility transistor (HEMT)))

Patent 5557119: Field effect transistor having unsaturated drain current characteristic
(ACTIVE SOLID-STATE DEVICES (E.G., TRANSISTORS, SOLID-STATE DIODES) : FIELD EFFECT DEVICE : Junction field effect transistor (unipolar transistor) : Vertical controlled current path : Enhancement mode or with high resistivity channel (e.g., doping of 10 15 cm -3 or less) : Plural gate levels)

Patent 5557120: Wafer joined optoelectronic integrated circuits
(ACTIVE SOLID-STATE DEVICES (E.G., TRANSISTORS, SOLID-STATE DIODES) : FIELD EFFECT DEVICE : Having insulated electrode (e.g., MOSFET, MOS diode) : Light responsive or combined with light responsive device : Imaging array : With groove or overhang for alignment)

Patent 5557121: Laminated solid-state image sensing apparatus and method of manufacturing the same
(ACTIVE SOLID-STATE DEVICES (E.G., TRANSISTORS, SOLID-STATE DIODES) : FIELD EFFECT DEVICE : Having insulated electrode (e.g., MOSFET, MOS diode) : Light responsive or combined with light responsive device : Imaging array : Photodiodes accessed by FETs : Si x Ge 1-x)

Patent 5557122: Semiconductor electrode having improved grain structure and oxide growth properties
(ACTIVE SOLID-STATE DEVICES (E.G., TRANSISTORS, SOLID-STATE DIODES) : FIELD EFFECT DEVICE : Having insulated electrode (e.g., MOSFET, MOS diode) : Insulated gate capacitor or insulated gate transistor combined with capacitor (e.g., dynamic memory cell) : Stacked capacitor : With increased effective electrode surface area (e.g., tortuous path, corrugated, or textured electrodes) : With capacitor electrodes connection portion located centrally thereof (e.g., fin electrodes with central post))

Patent 5557123: Nonvolatile semiconductor memory device with shaped floating gate
(ACTIVE SOLID-STATE DEVICES (E.G., TRANSISTORS, SOLID-STATE DIODES) : FIELD EFFECT DEVICE : Having insulated electrode (e.g., MOSFET, MOS diode) : Variable threshold (e.g., floating gate memory device) : With floating gate electrode : With increased effective electrode surface area (e.g., tortuous path, corrugated, or textured electrodes))

Patent 5557124: Flash EEPROM and EPROM arrays with select transistors within the bit line pitch
(ACTIVE SOLID-STATE DEVICES (E.G., TRANSISTORS, SOLID-STATE DIODES) : FIELD EFFECT DEVICE : Having insulated electrode (e.g., MOSFET, MOS diode) : Variable threshold (e.g., floating gate memory device) : With floating gate electrode : With additional contacted control electrode : With capacitor electrodes connection portion located centrally thereof (e.g., fin electrodes with central post))

Patent 5557125: Dielectrically isolated semiconductor devices having improved characteristics
(ACTIVE SOLID-STATE DEVICES (E.G., TRANSISTORS, SOLID-STATE DIODES) : FIELD EFFECT DEVICE : Having insulated electrode (e.g., MOSFET, MOS diode) : Short channel insulated gate field effect transistor : Gate controls vertical charge flow portion of channel (e.g., VMOS device) : With additional, non-memory control electrode or channel portion (e.g., accessing field effect transistor structure))

Patent 5557126: Thin-film transistor and method for forming the same
(ACTIVE SOLID-STATE DEVICES (E.G., TRANSISTORS, SOLID-STATE DIODES) : FIELD EFFECT DEVICE : Having insulated electrode (e.g., MOSFET, MOS diode) : Short channel insulated gate field effect transistor : Gate controls vertical charge flow portion of channel (e.g., VMOS device) : Gate electrode in groove : Gate electrode self-aligned with groove : Separate control electrodes for charging and for discharging floating electrode)

Patent 5557127: Termination structure for mosgated device with reduced mask count and process for its manufacture
(ACTIVE SOLID-STATE DEVICES (E.G., TRANSISTORS, SOLID-STATE DIODES) : FIELD EFFECT DEVICE : Having insulated electrode (e.g., MOSFET, MOS diode) : Short channel insulated gate field effect transistor : Active channel region has a graded dopant concentration decreasing with distance from source region (e.g., double diffused device, DMOS transistor) : With means to increase breakdown voltage : With complementary field effect transistor)

Patent 5557128: Insulated-gate type bipolar transistor
(ACTIVE SOLID-STATE DEVICES (E.G., TRANSISTORS, SOLID-STATE DIODES) : FIELD EFFECT DEVICE : Having insulated electrode (e.g., MOSFET, MOS diode) : Short channel insulated gate field effect transistor : Active channel region has a graded dopant concentration decreasing with distance from source region (e.g., double diffused device, DMOS transistor) : Plural sections connected in parallel (e.g., power MOSFET) : With complementary field effect transistor)

Patent 5557129: Semiconductor MOSFET device having a shallow nitrogen implanted channel region
(ACTIVE SOLID-STATE DEVICES (E.G., TRANSISTORS, SOLID-STATE DIODES) : FIELD EFFECT DEVICE : Having insulated electrode (e.g., MOSFET, MOS diode) : Short channel insulated gate field effect transistor : With means to prevent sub-surface currents, or with non-uniform channel doping : All contacts on same surface (e.g., lateral structure))

Patent 5557130: ESD input protection arrangement
(ACTIVE SOLID-STATE DEVICES (E.G., TRANSISTORS, SOLID-STATE DIODES) : FIELD EFFECT DEVICE : Having insulated electrode (e.g., MOSFET, MOS diode) : With overvoltage protective means : For protecting against gate insulator breakdown : In complementary field effect transistor integrated circuit : Including resistor element : As thin film structure (e.g., polysilicon resistor) :)

Patent 5557131: Elevated emitter for double poly BICMOS devices
(ACTIVE SOLID-STATE DEVICES (E.G., TRANSISTORS, SOLID-STATE DIODES) : FIELD EFFECT DEVICE : Having insulated electrode (e.g., MOSFET, MOS diode) : Insulated gate field effect transistor in integrated circuit : Complementary insulated gate field effect transistors : Combined with bipolar transistor : For operation as bipolar or punchthrough element)

Patent 5557132: Semiconductor relay unit
(ACTIVE SOLID-STATE DEVICES (E.G., TRANSISTORS, SOLID-STATE DIODES) : RESPONSIVE TO NON-ELECTRICAL SIGNAL (E.G., CHEMICAL, STRESS, LIGHT, OR MAGNETIC FIELD SENSORS) : Physical deformation : Gate electrode of refractory material (e.g., polysilicon or a silicide of a refractory or platinum group metal))

Patent 5557133: Voltage-controlled variable spectrum photodetector for 2D color image detection and reconstruction applications
(ACTIVE SOLID-STATE DEVICES (E.G., TRANSISTORS, SOLID-STATE DIODES) : RESPONSIVE TO NON-ELECTRICAL SIGNAL (E.G., CHEMICAL, STRESS, LIGHT, OR MAGNETIC FIELD SENSORS) : Electromagnetic or particle radiation : Light : With different sensor portions responsive to different wavelengths (e.g., color imager) : Antireflection coating)

Patent 5557134: Dielectric isolated type semiconductor device
(ACTIVE SOLID-STATE DEVICES (E.G., TRANSISTORS, SOLID-STATE DIODES) : INTEGRATED CIRCUIT STRUCTURE WITH ELECTRICALLY ISOLATED COMPONENTS : Including dielectric isolation means : High power or high voltage device extends completely through semiconductor substrate (e.g., backside collector contact))

Patent 5557135: Semiconductor device with field shield isolation structure and a method of manufacturing the same
(ACTIVE SOLID-STATE DEVICES (E.G., TRANSISTORS, SOLID-STATE DIODES) : FIELD EFFECT DEVICE : Having insulated electrode (e.g., MOSFET, MOS diode) : Insulated gate capacitor or insulated gate transistor combined with capacitor (e.g., dynamic memory cell) : Stacked capacitor : Parallel interleaved capacitor electrode pairs (e.g., interdigitized) : Si x Ge 1-x)

Patent 5557136: Programmable interconnect structures and programmable integrated circuits
(ACTIVE SOLID-STATE DEVICES (E.G., TRANSISTORS, SOLID-STATE DIODES) : INTEGRATED CIRCUIT STRUCTURE WITH ELECTRICALLY ISOLATED COMPONENTS : Passive components in ICs : Including programmable passive component (e.g., fuse) : Anti-fuse : Sides of grooves along major crystal planes (e.g., (111), (100) planes, etc.))

Patent 5557137: Voltage programmable link having reduced capacitance
(ACTIVE SOLID-STATE DEVICES (E.G., TRANSISTORS, SOLID-STATE DIODES) : INTEGRATED CIRCUIT STRUCTURE WITH ELECTRICALLY ISOLATED COMPONENTS : Passive components in ICs : Including programmable passive component (e.g., fuse) : Anti-fuse : Sides of grooves along major crystal planes (e.g., (111), (100) planes, etc.))

Patent 5557138: LC element and semiconductor device
(ACTIVE SOLID-STATE DEVICES (E.G., TRANSISTORS, SOLID-STATE DIODES) : INTEGRATED CIRCUIT STRUCTURE WITH ELECTRICALLY ISOLATED COMPONENTS : Passive components in ICs : Including inductive element : Anti-fuse)

Patent 5557139: Buried base vertical bipolar power transistor with improved current gain and operation area
(ACTIVE SOLID-STATE DEVICES (E.G., TRANSISTORS, SOLID-STATE DIODES) : BIPOLAR TRANSISTOR STRUCTURE : With base region having specified doping concentration profile or specified configuration (e.g., inactive base more heavily doped than active base or base region has constant doping concentration portion (e.g., epitaxial base)) : Including polycrystalline semiconductor as connection)

Patent 5557140: Process tolerant, high-voltage, bi-level capacitance varactor diode
(ACTIVE SOLID-STATE DEVICES (E.G., TRANSISTORS, SOLID-STATE DIODES) : VOLTAGE VARIABLE CAPACITANCE DEVICE : With specified dopant profile : Including polycrystalline semiconductor as connection)

Patent 5557141: Method of doping, semiconductor device, and method of fabricating semiconductor device
(ACTIVE SOLID-STATE DEVICES (E.G., TRANSISTORS, SOLID-STATE DIODES) : WITH MEANS TO CONTROL SURFACE EFFECTS : In compound semiconductor material (e.g., GaAs) : Major crystal plane or axis other than (100), (110), or (111) (e.g., (731) axis, crystal plane several degrees from (100) toward (011), etc.))

Patent 5557142: Shielded semiconductor device package
(ACTIVE SOLID-STATE DEVICES (E.G., TRANSISTORS, SOLID-STATE DIODES) : WITH SHIELDING (E.G., ELECTRICAL OR MAGNETIC SHIELDING, OR FROM ELECTROMAGNETIC RADIATION OR CHARGED PARTICLES) : Stepped profile)

Patent 5557143: Semiconductor device having two staggered lead frame stages
(ACTIVE SOLID-STATE DEVICES (E.G., TRANSISTORS, SOLID-STATE DIODES) : LEAD FRAME : On integrated circuit)

Patent 5557144: Plastic packages for microwave frequency applications
(ACTIVE SOLID-STATE DEVICES (E.G., TRANSISTORS, SOLID-STATE DIODES) : LEAD FRAME : On insulating carrier other than a printed circuit board : Details of insulating layer electrical charge (e.g., negative insulator layer charge))

Patent 5557145: Mounting construction and method of a semiconductor device by which deformation of leads is prevented
(ACTIVE SOLID-STATE DEVICES (E.G., TRANSISTORS, SOLID-STATE DIODES) : HOUSING OR PACKAGE : With contact or lead : With particular lead geometry : Combined with channel stop region in semiconductor)

Patent 5557146: Ohmic contact using binder paste with semiconductor material dispersed therein
(ACTIVE SOLID-STATE DEVICES (E.G., TRANSISTORS, SOLID-STATE DIODES) : COMBINED WITH ELECTRICAL CONTACT OR LEAD : Of specified material other than unalloyed aluminum : Ball shaped)

Patent 5557147: Semiconductor integrated circuit device, process for fabricating the same, and apparatus for fabricating the same
(ACTIVE SOLID-STATE DEVICES (E.G., TRANSISTORS, SOLID-STATE DIODES) : COMBINED WITH ELECTRICAL CONTACT OR LEAD : Of specified material other than unalloyed aluminum : Layered : At least one layer of molybdenum, titanium, or tungsten : Separating insulating layer is laminate or composite of plural insulating materials (e.g., silicon oxide on silicon nitride, silicon oxynitride))

Patent 5557148: Hermetically sealed semiconductor device
(ACTIVE SOLID-STATE DEVICES (E.G., TRANSISTORS, SOLID-STATE DIODES) : COMBINED WITH ELECTRICAL CONTACT OR LEAD : Chip mounted on chip : Cross-over arrangement, component or structure)

Patent 5557149: Semiconductor fabrication with contact processing for wrap-around flange interface
(ACTIVE SOLID-STATE DEVICES (E.G., TRANSISTORS, SOLID-STATE DIODES) : COMBINED WITH ELECTRICAL CONTACT OR LEAD : Solder wettable contact, lead, or bond : Cross-over arrangement, component or structure)

Patent 5557150: Overmolded semiconductor package
(ACTIVE SOLID-STATE DEVICES (E.G., TRANSISTORS, SOLID-STATE DIODES) : ENCAPSULATED : Configuration or pattern of bonds)

Patent 5557151: Method of making a gas generation composition
(PLASTIC AND NONMETALLIC ARTICLE SHAPING OR TREATING: PROCESSES : EXPLOSIVE OR PROPELLANT ARTICLE SHAPING OR TREATING : Forming or treating particulate material : Preform)

Patent 5557152: 2-Pole single or dual coil moving magnet motor with moving back iron
(ELECTRICAL GENERATOR OR MOTOR STRUCTURE : DYNAMOELECTRIC : Rotary : Magnetic motors : Solenoid and core)

Patent 5557153: Air-cooled rotating electrical machine
(ELECTRICAL GENERATOR OR MOTOR STRUCTURE : DYNAMOELECTRIC : Rotary : Cooling or fluid contact : With gas purification or treating : Claw-tooth and printed circuit components)

Patent 5557154: Linear actuator with feedback position sensor device
(ELECTRICAL GENERATOR OR MOTOR STRUCTURE : DYNAMOELECTRIC : Rotary : With other elements : Drive mechanism : Motion conversion : Distributor or timer (e.g., ignition magnetos))

Patent 5557155: Optimization of superconducting tiling pattern for superconducting bearings
(ELECTRICAL GENERATOR OR MOTOR STRUCTURE : DYNAMOELECTRIC : Rotary : With other elements : Bearing or air-gap adjustment or bearing lubrication : Magnetic bearing : Impulse coupling)

Patent 5557156: Scan control for scanning probe microscopes
(ELECTRICAL GENERATOR OR MOTOR STRUCTURE : NON-DYNAMOELECTRIC : Piezoelectric elements and devices : Electrical systems : Input circuit for simultaneous electrical and mechanical output from piezoelectric element : Grating or reflector in wave path)

Patent 5557157: Vibration driven motor
(ELECTRICAL GENERATOR OR MOTOR STRUCTURE : NON-DYNAMOELECTRIC : Piezoelectric elements and devices : Combined with resonant structure : Direct mechanical coupling : Motor producing continual motion : Traveling wave motor : Specific material or composition : Pressing means detail)

Patent 5557158: Spark plug and method of producing the same
(ELECTRIC LAMP AND DISCHARGE DEVICES : SPARK PLUGS : Particular electrode structure or spacing : Non-shortest line spark and surface spark type)

Patent 5557159: Field emission microtip clusters adjacent stripe conductors
(ELECTRIC LAMP AND DISCHARGE DEVICES : ELECTRODE AND SHIELD STRUCTURES : Point source cathodes : Rod electrode or shield)

Patent 5557160: Field emission cathode including cylindrically shaped resistive connector and method of manufacturing
(ELECTRIC LAMP AND DISCHARGE DEVICES : ELECTRODE AND SHIELD STRUCTURES : Point source cathodes : Rod electrode or shield)

Patent 5557161: Color display tube having a magnetic sheild with a reduced magnetic permeability area
(ELECTRIC LAMP AND DISCHARGE DEVICES : CATHODE RAY TUBE : Shadow mask, support or shield : Monoscope)

Patent 5557162: Color picture tube with a shadow mask support member
(ELECTRIC LAMP AND DISCHARGE DEVICES : CATHODE RAY TUBE : Shadow mask, support or shield : Monoscope)

Patent 5557163: Multiple window electron gun providing redundant scan paths for an electron beam
(ELECTRIC LAMP AND DISCHARGE DEVICES : CATHODE RAY TUBE : Electron permeable window : Plural)

Patent 5557164: Cathode ray tube with misconvergence compensation
(ELECTRIC LAMP AND DISCHARGE DEVICES : CATHODE RAY TUBE : Beam deflecting means : With yoke : Electrostatic)

Patent 5557165: Deflection yoke attachment arrangement
(ELECTRIC LAMP AND DISCHARGE DEVICES : CATHODE RAY TUBE : Beam deflecting means : With yoke : Electrostatic)

Patent 5557166: Reflection-type photoelectronic surface and photomultiplier
(ELECTRIC LAMP AND DISCHARGE DEVICES : PHOTOSENSITIVE : With optical device : With details of high-voltage connector)

Patent 5557167: Transmission mode photocathode sensitive to ultravoilet light
(ELECTRIC LAMP AND DISCHARGE DEVICES : PHOTOSENSITIVE : Photocathode : Having plural dynodes)

Patent 5557168: Gas-discharging type display device and a method of manufacturing
(ELECTRIC LAMP AND DISCHARGE DEVICES : WITH GAS OR VAPOR : Three or more electrode discharge device : Multiple gaseous discharge display panel : Having intersecting electrode sets : With dielectric member : With rare gas)

Patent 5557169: Electric lamp with high and low melting point current supply conductor
(ELECTRIC LAMP AND DISCHARGE DEVICES : WITH GAS OR VAPOR : Having electrode lead-in or electrode support sealed to envelope : With positive ion or cathode shield)

Patent 5557170: Low-pressure discharge lamp and method of manufacturing a low-pressure discharge lamp
(ELECTRIC LAMP AND DISCHARGE DEVICES : WITH GAS OR VAPOR : Envelope with particular structure : Envelope layer or coating : Substantially the full length of discharge path)

Patent 5557171: High intensity discharge lamp with ultra violet absorbing envelope
(ELECTRIC LAMP AND DISCHARGE DEVICES : WITH GAS OR VAPOR : Envelope composition : Envelope layer or coating)

Patent 5557172: Plasma beam generating method and apparatus which can generate a high-power plasma beam
(ELECTRIC LAMP AND DISCHARGE DEVICES: SYSTEMS : DISCHARGE DEVICE LOAD WITH FLUENT MATERIAL SUPPLY TO THE DISCHARGE SPACE : Plasma generating : With magnetic field : Plasma containment : Discharge control discharge device)

Patent 5557173: Infrared detection circuit
(ELECTRIC LAMP AND DISCHARGE DEVICES: SYSTEMS : WITH RADIANT ENERGY SENSITIVE CONTROL MEANS : Radiant energy controlled regulation of the current supply for the load device : Selective energization of the load devices)

Patent 5557174: Electronic ballast with dimmer and harmonics filter for supplying a load, for example a lamp
(ELECTRIC LAMP AND DISCHARGE DEVICES: SYSTEMS : REGULATION OF THE CONTROL CURRENT AND/OR POTENTIAL APPLIED TO DISCHARGE CONTROL DISCHARGE DEVICE LOADS BY PHASE SHIFTING MEANS : Christmas lights)

Patent 5557175: Battery operated inverter circuit for capacitive loads such as electroluminescent lamps
(ELECTRIC LAMP AND DISCHARGE DEVICES: SYSTEMS : DISCHARGE DEVICE AND/OR RECTIFIER IN THE SUPPLY CIRCUIT : Discharge control discharge device in the control circuit)

Patent 5557176: Modulated electronic ballast for driving gas discharge lamps
(ELECTRIC LAMP AND DISCHARGE DEVICES: SYSTEMS : CURRENT AND/OR VOLTAGE REGULATION : Automatic regulation : Plural field-type generator)

Patent 5557177: Enhanced electron beam addressed storage target
(ELECTRIC LAMP AND DISCHARGE DEVICES: SYSTEMS : CATHODE RAY TUBE CIRCUITS : Cathode-ray deflections circuits : For flat cathode-ray tube : Intermediate stage at lower potential)

Patent 5557178: Circular particle accelerator with mobius twist
(ELECTRIC LAMP AND DISCHARGE DEVICES: SYSTEMS : HIGH ENERGY PARTICLE ACCELERATOR TUBE : Magnetic field acceleration means : Including a discharge device)

Patent 5557179: Control circuit for plural partially interlocked commutator type motors with oscillation damping characteristics
(ELECTRICITY: MOTIVE POWER SYSTEMS : PLURAL, DIVERSE OR DIVERSELY CONTROLLED ELECTRIC MOTORS : Having electrical synchronizing interconnections : Shaded pole motors)

Patent 5557180: Circuit and method for operating a 3-phase motor with a uni-coil phase commutation scheme
(ELECTRICITY: MOTIVE POWER SYSTEMS : SELF-COMMUTATED IMPULSE OR RELUCTANCE MOTORS : Field circuit control)

Patent 5557181: Brake control apparatus for electric motor vehicle
(ELECTRICITY: MOTIVE POWER SYSTEMS : BRAKING : Dynamic braking : Regenerative : Speed, acceleration, movement or position of motor or driven device)

Patent 5557182: System and methods for controlling a draft inducer to provide a desired operating area
(ELECTRICITY: MOTIVE POWER SYSTEMS : CONSTANT MOTOR CURRENT, LOAD AND/OR TORQUE CONTROL : Initial, "cracking" or "starting from rest" torque control)

Patent 5557183: Method and apparatus for predicting failure of a disk drive
(ELECTRICITY: MOTIVE POWER SYSTEMS : LIMITATION OF MOTOR LOAD, CURRENT, TORQUE OR FORCE (E.G., PREVENTING OVERLOAD) : Control of motor load or device driven)

Patent 5557184: Spindle motor controlling circuit of an optical disk system
(ELECTRICITY: MOTIVE POWER SYSTEMS : POSITIONAL SERVO SYSTEMS (E.G., SERVOMECHANISMS) : Frequency- or phase-modulated systems : Phase comparison : Synchro or resolver (e.g., transmitter simulators))

Patent 5557185: Mechanical/electrical displacement transducer
(ELECTRICITY: MOTIVE POWER SYSTEMS : POSITIONAL SERVO SYSTEMS (E.G., SERVOMECHANISMS) : Program- or pattern-controlled systems : With program recording or composing means : Multifunction manipulator (i.e., Robot) : With particular sensing device : Manual lead through)

Patent 5557186: Linear accelerated device
(ELECTRICITY: MOTIVE POWER SYSTEMS : POSITIONAL SERVO SYSTEMS (E.G., SERVOMECHANISMS) : Limit or end-stop control : By deadband at null (e.g., threshold circuits))

Patent 5557187: Switched capacitor network
(ELECTRICITY: BATTERY OR CAPACITOR CHARGING OR DISCHARGING : CAPACITOR CHARGING OR DISCHARGING : With current sensing to detect proper battery connection (e.g., polarity, ripple, reverse current, etc.))

Patent 5557188: Smart battery system and interface
(ELECTRICITY: BATTERY OR CAPACITOR CHARGING OR DISCHARGING : BATTERY OR CELL DISCHARGING : With charging : With battery or cell condition monitoring (e.g., for protection from overcharging, heating, etc.) : Time control)

Patent 5557189: Method and apparatus including a current detector and a power source control circuit for charging a number of batteries
(ELECTRICITY: BATTERY OR CAPACITOR CHARGING OR DISCHARGING : SERIALLY CONNECTED BATTERIES OR CELLS : With individual charging of plural batteries or cells : With charger stand or base)

Patent 5557190: Battery recharging system with signal-to-noise responsive falling voltage slope charge termination
(ELECTRICITY: BATTERY OR CAPACITOR CHARGING OR DISCHARGING : BATTERY OR CELL CHARGING : With detection of current or voltage differential (e.g., slope, etc.) : Detection of current or voltage amplitude)

Patent 5557191: Apparatus for minimizing current drain in a battery powered data collector
(ELECTRICITY: BATTERY OR CAPACITOR CHARGING OR DISCHARGING : BATTERY OR CELL DISCHARGING : Regulated discharging : With battery or cell condition monitoring (e.g., for protection from overcharging, heating, etc.))

Patent 5557192: Charging apparatus with a compensation circuit
(ELECTRICITY: BATTERY OR CAPACITOR CHARGING OR DISCHARGING : BATTERY OR CELL CHARGING : With detection of current or voltage amplitude : Having solid-state control device : Detection of current and voltage amplitude : Detection of current and voltage amplitude)

Patent 5557193: Stabilized voltage generating circuit and internal voltage down converter and a method of generating an internal operating power supply
(ELECTRICITY: POWER SUPPLY OR REGULATION SYSTEMS : OUTPUT LEVEL RESPONSIVE : Using a three or more terminal semiconductive device as the final control device : Switched (e.g., switching regulators) : With reference voltage circuitry)

Patent 5557194: Reference current generator
(ELECTRICITY: POWER SUPPLY OR REGULATION SYSTEMS : SELF-REGULATING (E.G., NONRETROACTIVE) : Using a three or more terminal semiconductive device as the final control device : For current stabilization : Including parallel paths (e.g., current mirror) : With additional stage)

Patent 5557195: Method and apparatus for evaluating electrostatic discharge conditions
(ELECTRICITY: MEASURING AND TESTING : TESTING POTENTIAL IN SPECIFIC ENVIRONMENT (E.G., LIGHTNING STROKE) : Superconductors)

Patent 5557196: Jitter analyzer
(ELECTRICITY: MEASURING AND TESTING : MEASURING, TESTING, OR SENSING ELECTRICITY, PER SE : Phase comparison (e.g., between cyclic pulse voltage and sinusoidal current, etc.) : With space discharge device)

Patent 5557197: Multimeter with automatic function-setting
(ELECTRICITY: MEASURING AND TESTING : MEASURING, TESTING, OR SENSING ELECTRICITY, PER SE : Plural ranges, scales or registration rates : Tape, sheet (e.g., disk) or wire (e.g., magnetic) storage)

Patent 5557198: Onboard digital locomotive multimeter
(ELECTRICITY: MEASURING AND TESTING : MEASURING, TESTING, OR SENSING ELECTRICITY, PER SE : Plural ranges, scales or registration rates : Tape, sheet (e.g., disk) or wire (e.g., magnetic) storage)

Patent 5557199: Magnetic resonance monitor
(ELECTRICITY: MEASURING AND TESTING : PARTICLE PRECESSION RESONANCE : Using a magnetometer :)

Patent 5557200: Nuclear magnetic resonance determination of petrophysical properties of geologic structures
(ELECTRICITY: MEASURING AND TESTING : PARTICLE PRECESSION RESONANCE : Using well logging device : To determine direction)

Patent 5557201: Pulsed nuclear magnetism tool for formation evaluation while drilling
(ELECTRICITY: MEASURING AND TESTING : PARTICLE PRECESSION RESONANCE : Using well logging device : To determine direction)

Patent 5557202: Method and system for magnetic resonance imaging
(ELECTRICITY: MEASURING AND TESTING : PARTICLE PRECESSION RESONANCE : Using a nuclear resonance spectrometer system : Having particular optical cell structure)

Patent 5557203: Magnetic resonance imaging with combined back projection and fourier transformation method
(ELECTRICITY: MEASURING AND TESTING : PARTICLE PRECESSION RESONANCE : Using a nuclear resonance spectrometer system : To obtain localized resonance within a sample :)

Patent 5557204: Method for the operation of a nuclear magnetic resonance tomograpohy apparatus for the acquisition of at least two differently weighted
(ELECTRICITY: MEASURING AND TESTING : PARTICLE PRECESSION RESONANCE : Using a nuclear resonance spectrometer system : To obtain localized resonance within a sample :)

Patent 5557205: Magnetic field generating apparatus for use in MRI
(ELECTRICITY: MEASURING AND TESTING : PARTICLE PRECESSION RESONANCE : Spectrometer components : Polarizing field magnet :)

Patent 5557206: Apparatus and method for detecting a weak induced magnetic field by means of two concentric transmitter loops
(ELECTRICITY: MEASURING AND TESTING : OF GEOPHYSICAL SURFACE OR SUBSURFACE IN SITU : For small object detection or location : Using movable transmitter and receiver : Of the beat frequency type)

Patent 5557207: Street light testing kit
(ELECTRICITY: MEASURING AND TESTING : ELECTRIC LAMP OR DISCHARGE DEVICE : Electric lamp : Shock testing)

Patent 5557208: Battery tester with stacked thermochromic elements
(ELECTRICITY: MEASURING AND TESTING : ELECTROLYTE PROPERTIES : Using a battery testing device : Having particular meter scale or indicator : Including an integrating device)

Patent 5557209: Identification of pin-open faults by capacitive coupling through the integrated circuit package
(ELECTRICITY: MEASURING AND TESTING : FAULT DETECTING IN ELECTRIC CIRCUITS AND OF ELECTRIC COMPONENTS : Of individual circuit component or element : By spark or arc discharge)

Patent 5557210: Universal cable connector for temporarily connecting implantable stimulation leads and implantable stimulation devices with a
(ELECTRICITY: MEASURING AND TESTING : FAULT DETECTING IN ELECTRIC CIRCUITS AND OF ELECTRIC COMPONENTS : Of individual circuit component or element : Multiconductor cable : With barrier layer)

Patent 5557211: Vacuum test fixture for printed circuit boards
(ELECTRICITY: MEASURING AND TESTING : FAULT DETECTING IN ELECTRIC CIRCUITS AND OF ELECTRIC COMPONENTS : Of individual circuit component or element : With probe elements : Using electro-optic device)

Patent 5557212: Semiconductor test socket and contacts
(ELECTRICITY: MEASURING AND TESTING : FAULT DETECTING IN ELECTRIC CIRCUITS AND OF ELECTRIC COMPONENTS : Of individual circuit component or element : With probe elements : Internal of or on support for device under test (DUT) : Of reflected test signal)

Patent 5557213: Spring-loaded electrical contact probe
(ELECTRICITY: MEASURING AND TESTING : FAULT DETECTING IN ELECTRIC CIRCUITS AND OF ELECTRIC COMPONENTS : Of individual circuit component or element : With probe elements : Pin : Of reflected test signal)

Patent 5557214: Micro beam probe semiconductor test interface
(ELECTRICITY: MEASURING AND TESTING : FAULT DETECTING IN ELECTRIC CIRCUITS AND OF ELECTRIC COMPONENTS : Of individual circuit component or element : With probe elements : Cantilever : Of reflected test signal)

Patent 5557215: Self-bias measuring method, apparatus thereof and electrostatic chucking apparatus
(ELECTRICITY: MEASURING AND TESTING : FAULT DETECTING IN ELECTRIC CIRCUITS AND OF ELECTRIC COMPONENTS : Of individual circuit component or element : Test of semiconductor device : Cantilever)

Patent 5557216: System and method for testing electrical generators
(ELECTRICITY: MEASURING AND TESTING : FAULT DETECTING IN ELECTRIC CIRCUITS AND OF ELECTRIC COMPONENTS : Of individual circuit component or element : Motor or generator fault tests : With barrier layer)

Patent 5557217: High-density erasable programmable logic device architecture using multiplexer interconnections
(ELECTRONIC DIGITAL LOGIC CIRCUITRY : MULTIFUNCTIONAL OR PROGRAMMABLE (E.G., UNIVERSAL, ETC.) : Array (e.g., PLA, PAL, PLD, etc.) : With field effect-transistor)

Patent 5557218: Reprogrammable programmable logic array
(ELECTRONIC DIGITAL LOGIC CIRCUITRY : MULTIFUNCTIONAL OR PROGRAMMABLE (E.G., UNIVERSAL, ETC.) : Array (e.g., PLA, PAL, PLD, etc.) : With flip-flop or sequential device : With clocking)

Patent 5557219: Interface level programmability
(ELECTRONIC DIGITAL LOGIC CIRCUITRY : MULTIFUNCTIONAL OR PROGRAMMABLE (E.G., UNIVERSAL, ETC.) : Field-effect transistor : Field effect transistor)

Patent 5557220: Polarity detector
(MISCELLANEOUS ACTIVE ELECTRICAL NONLINEAR DEVICES, CIRCUITS, AND SYSTEMS : SPECIFIC SIGNAL DISCRIMINATING (E.G., COMPARING, SELECTING, ETC.) WITHOUT SUBSEQUENT CONTROL : By polarity : With reference)

Patent 5557221: Semiconductor integrated circuit with input/output interface adapted for small-amplitude operation
(MISCELLANEOUS ACTIVE ELECTRICAL NONLINEAR DEVICES, CIRCUITS, AND SYSTEMS : SPECIFIC SIGNAL DISCRIMINATING (E.G., COMPARING, SELECTING, ETC.) WITHOUT SUBSEQUENT CONTROL : By amplitude : With sensing amplifier : Differential amplifier : Current mirror :)

Patent 5557222: Delayed detection type demodulator
(MISCELLANEOUS ACTIVE ELECTRICAL NONLINEAR DEVICES, CIRCUITS, AND SYSTEMS : SIGNAL CONVERTING, SHAPING, OR GENERATING : Synthesizer : With logic or bistable circuit)

Patent 5557223: CMOS bus and transmission line driver having compensated edge rate control
(MISCELLANEOUS ACTIVE ELECTRICAL NONLINEAR DEVICES, CIRCUITS, AND SYSTEMS : SIGNAL CONVERTING, SHAPING, OR GENERATING : Current driver : Having digital device (e.g., logic gate, flip-flop, etc.))

Patent 5557224: Apparatus and method for generating a phase-controlled clock signal
(MISCELLANEOUS ACTIVE ELECTRICAL NONLINEAR DEVICES, CIRCUITS, AND SYSTEMS : SIGNAL CONVERTING, SHAPING, OR GENERATING : Frequency or repetition rate conversion or control : Of output rectangular waveform : Frequency division : With differential amplifier)

Patent 5557225: Pulsed flip-flop circuit
(MISCELLANEOUS ACTIVE ELECTRICAL NONLINEAR DEVICES, CIRCUITS, AND SYSTEMS : SIGNAL CONVERTING, SHAPING, OR GENERATING : Particular stable state circuit (e.g., tristable, etc.) : Circuit having only two stable states (i.e., bistable) : Four or more layer device, (e.g., trigistor, etc.))

Patent 5557226: Address transition detector circuit and method of driving same
(MISCELLANEOUS ACTIVE ELECTRICAL NONLINEAR DEVICES, CIRCUITS, AND SYSTEMS : SIGNAL CONVERTING, SHAPING, OR GENERATING : Particular stable state circuit (e.g., tristable, etc.) : Monostable : With single electron tube)

Patent 5557227: Economical generation of exponential and pseudo-exponential decay functions in digital hardware
(MISCELLANEOUS ACTIVE ELECTRICAL NONLINEAR DEVICES, CIRCUITS, AND SYSTEMS : SPECIFIC INPUT TO OUTPUT FUNCTION : Exponential : Having feedback)

Patent 5557228: Four-quadrant multiplier
(MISCELLANEOUS ACTIVE ELECTRICAL NONLINEAR DEVICES, CIRCUITS, AND SYSTEMS : SPECIFIC INPUT TO OUTPUT FUNCTION : Combining of plural signals : With vacuum tube)

Patent 5557229: Apparatus and method for producing an output signal from a memory array
(MISCELLANEOUS ACTIVE ELECTRICAL NONLINEAR DEVICES, CIRCUITS, AND SYSTEMS : GATING (I.E., SWITCHING INPUT TO OUTPUT) : Accelerating switching : Layout)

Patent 5557231: Semiconductor device with improved substrate bias voltage generating circuit
(MISCELLANEOUS ACTIVE ELECTRICAL NONLINEAR DEVICES, CIRCUITS, AND SYSTEMS : SPECIFIC IDENTIFIABLE DEVICE, CIRCUIT, OR SYSTEM : With specific source of supply or bias voltage : Having particular substrate biasing : With battery connected across rectifier)

Patent 5557232: Semiconductor integrated circuit device having a control circuit for setting the test mode
(MISCELLANEOUS ACTIVE ELECTRICAL NONLINEAR DEVICES, CIRCUITS, AND SYSTEMS : SPECIFIC IDENTIFIABLE DEVICE, CIRCUIT, OR SYSTEM : With specific source of supply or bias voltage : Including signal protection or bias preservation : Using field-effect transistor)

Patent 5557233: Filter for computer bus signals
(MISCELLANEOUS ACTIVE ELECTRICAL NONLINEAR DEVICES, CIRCUITS, AND SYSTEMS : SPECIFIC IDENTIFIABLE DEVICE, CIRCUIT, OR SYSTEM : Unwanted signal suppression : Active filter : With field-effect transistor)

Patent 5557234: Differential amplifier with mismatch correction using floating gates
(MISCELLANEOUS ACTIVE ELECTRICAL NONLINEAR DEVICES, CIRCUITS, AND SYSTEMS : SPECIFIC IDENTIFIABLE DEVICE, CIRCUIT, OR SYSTEM : Nonlinear amplifying circuit : With differential amplifier : With field-effect transistor)

Patent 5557235: Semiconductor device comprising a grounding pad near a reference signal pad and a capacitor between the pads
(MISCELLANEOUS ACTIVE ELECTRICAL NONLINEAR DEVICES, CIRCUITS, AND SYSTEMS : SPECIFIC IDENTIFIABLE DEVICE, CIRCUIT, OR SYSTEM : Integrated structure : With differential amplifier)

Patent 5557236: Integrated circuit with bidirectional pin
(MISCELLANEOUS ACTIVE ELECTRICAL NONLINEAR DEVICES, CIRCUITS, AND SYSTEMS : SPECIFIC IDENTIFIABLE DEVICE, CIRCUIT, OR SYSTEM : Integrated structure : With specific layout or layout interconnections : With field-effect transistor)

Patent 5557237: Method and device for automatic gain control in an amplifier of an electroacoustic system, particularly for motor vehicles
(AMPLIFIERS : WITH CONTROL OF POWER SUPPLY OR BIAS VOLTAGE : With control of input electrode or gain control electrode bias : D.C. coupling)

Patent 5557238: Differential amplifier with common mode regulation
(AMPLIFIERS : WITH SEMICONDUCTOR AMPLIFYING DEVICE (E.G., TRANSISTOR) : Including differential amplifier : Having common mode rejection circuit :)

Patent 5557239: Direct current offset compensating circuit of an audio system
(AMPLIFIERS : WITH SEMICONDUCTOR AMPLIFYING DEVICE (E.G., TRANSISTOR) : Including differential amplifier : Having D.C. feedback bias control for stabilization :)

Patent 5557240: Power supply for a computer including a sound signal amplifying circuit
(AMPLIFIERS : WITH SEMICONDUCTOR AMPLIFYING DEVICE (E.G., TRANSISTOR) : Including particular power supply circuitry : Having frequency-responsive means or phase-shift means in feedback path)

Patent 5557241: Linear chirp generation using VCO tuning with polynomial predistortion
(OSCILLATORS : AUTOMATIC FREQUENCY STABILIZATION USING A PHASE OR FREQUENCY SENSING MEANS : Search sweep of oscillator :)

Patent 5557242: Method and apparatus for dielectric absorption compensation
(OSCILLATORS : AUTOMATIC FREQUENCY STABILIZATION USING A PHASE OR FREQUENCY SENSING MEANS : Particular error voltage control (e.g., intergrating network) : Motor control of oscillator)

Patent 5557243: Oscillation circuit with power limiting controller
(OSCILLATORS : ELECTROMECHANICAL RESONATOR : Crystal : With sync, trigger, or pulsing circuit (e.g., self-pulsing))

Patent 5557244: Dual port phase and magnitude balanced synthesizer modulator and method for a transceiver
(MODULATORS : FREQUENCY MODULATOR : Including stabilization or alternatively distortion, noise or other interference prevention, reduction, or compensation : Automatic frequency stabilization or control : Phase or frequency locked loop : Modulating signal applied to plural elements of the loop :)

Patent 5557245: Strip line-type high-frequency element
(WAVE TRANSMISSION LINES AND NETWORKS : PLURAL CHANNEL SYSTEMS : Having branched circuits : Using directional coupler : Having TEM lines : Using stripline : For TEM lines)

 

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