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Patent 5221750: 2-aryl-4-isoxazolin-3-one derivatives
(ORGANIC COMPOUNDS -- PART OF THE CLASS 532-570 SERIES : : : Hetero ring is five-membered having two or more ring hetero atoms of which at least one is nitrogen (e.g., selenazoles, etc.) : 1,2-oxazoles (including hydrogenated) : Chalcogen bonded directly to ring carbon of the oxazole ring : At least three ring hetero atoms in the polycyclo ring system)
Patent 5221751: Heterocyclic polymethine dyes with carbamate or amide groups
(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.) : Polycyclo ring system having the five-membered hetero ring as one of the cyclos : Bicyclo ring system having the five-membered hetero ring as one of the cyclos (e.g., octahydroindoles, etc.) : Additional polycyclo heterocyclic ring system attached directly or indirectly to the bicyclo ring system by nonionic bonding : The additional polycyclo ring system includes a five-membered nitrogen containing hetero ring : The tricyclo ring system is unsubstituted or is hydrocarbyl substituted only (e.g., N-vinyl carbazole, etc.))
Patent 5221752: .alpha.-keto amide derivatives
(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.) : Having -C(=X)-, wherein X is chalcogen, bonded directly to the five membered hetero ring (e.g., pyrrole carbonyl halides, pyrrole carboxaldehyde, etc.) : Acyclic carbon bonded directly to the -C(=X)- (e.g., N-oleoylpyrrolidine, etc.) : The -C(=X)- is bonded directly to the ring nitrogen of the five-membered hetero ring (e.g., 1-pyrrolidine carboxanilides, etc.))
Patent 5221753: Preparation of 1-(4-tetrahydropyranyl)- or 1-(4-tetrahydrothiopyranyl)prop-1-en-3-ones
(ORGANIC COMPOUNDS -- PART OF THE CLASS 532-570 SERIES : : : Sulfur containing hetero ring (e.g., thiiranes, etc.) : The hetero ring is six-membered : Polycyclo ring system having at least three cyclos and having the hetero ring as one of the cyclos)
Patent 5221754: Reagents for rapid peptide synthesis
(ORGANIC COMPOUNDS -- PART OF THE CLASS 532-570 SERIES : : : Sulfur containing hetero ring (e.g., thiiranes, etc.) : The hetero ring is five-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 : Chalcogen attached directly to the bicyclo ring system by nonionic bonding : Chalcogen attached directly to the hetero ring by nonionic bonding : Chalcogen attached directly to ring sulfur of the hetero ring by nonionic bonding :)
Patent 5221755: Optically active ether lactone, optically active polymer thereof, and process for producing the polymer
(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 has at least seven members : Plural ring oxygens in the lactone ring : Maleic anhydride per se)
Patent 5221756: Method for the recovery and purification of maltol
(ORGANIC COMPOUNDS -- PART OF THE CLASS 532-570 SERIES : : : Oxygen containing hetero ring (e.g., dioxirane, etc.) : The hetero ring is six-membered : Chalcogen bonded directly to the hetero ring : Plural chalcogens bonded directly to the hetero ring : Hydroxy bonded directly at the 3-position and oxygen double bonded directly at the 4-position of the hetero ring (H of -OH may be replaced by a substituted or unsubstituted ammonium ion or a Group IA or IIA light metal) : Chalcogen bonded directly to the carbocyclic ring of the bicyclo ring system (e.g., tocopherols, etc.))
Patent 5221757: Amide derivatives and dermatologic preparations containing the same
(ORGANIC COMPOUNDS -- PART OF THE CLASS 532-570 SERIES : : Fatty compounds having an acid moiety which contains the carbonyl of a carboxylic acid, salt, ester, or amide group bonded directly to one end of an acyclic chain of at least seven (7) uninterrupted carbons, wherein any additional carbonyl in the acid moiety is (1) part of an aldehyde or ketone group, (2) bonded directly to a noncarbon atom which is between the additional carbonyl and the chain, or (3) attached indirectly to the chain via ionic bonding : The carbonyl is part of a carboxamide group (i.e., fatty acid amides) : Additional oxygen containing (e.g., amides of ricinoleic acid, etc.) : Hydroxyalkyl substituent on the amido nitrogen : Nitro containing or plural oxyalkylene groups bonded directly to each other)
Patent 5221758: Method of preparing a borate organic complex anion containing salt composition
(ORGANIC COMPOUNDS -- PART OF THE CLASS 532-570 SERIES : : HEAVY METAL CONTAINING (e.g., Ga, In or T1, etc.) : Boron containing : Nitrogen containing preservative or stabilizer)
Patent 5221759: Cyclosiloxanes containing mesogenic side groups
(ORGANIC COMPOUNDS -- PART OF THE CLASS 532-570 SERIES : : SILICON CONTAINING : Nitrogen attached indirectly to silicon by nonionic bonding : Plural silicons bonded directly to the nitrogen)
Patent 5221760: Alkenoic acid derivatives
(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) : Benzene ring bonded directly to the sulfonate group : Additional benzene ring containing : Additional nitrogen attached directly or indirectly to the -C(=X)- group by acyclic nonionic bonding)
Patent 5221761: Melt transesterification process for the production of polycarbonates
(ORGANIC COMPOUNDS -- PART OF THE CLASS 532-570 SERIES : : Carbonate esters (i.e, compounds having the -O-C(=O)O- group bonded directly to at least one carbon, which carbon may be single bonded to any atom but may be multiple bonded only to carbon) : Plural -O-C(=O)O- groups attached indirectly to each other by nonionic bonding : Benzene ring attached directly or indirectly to one of the -O-C(=O)O- groups by nonionic bonding : The additional chalcogen, X, is in a -C(=X)- group)
Patent 5221762: Preparation of E-oxime ethers of phenylglyoxylic esters
(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.) : Amidine, azomethine, ketimine or oxime in acid moiety : Sulfur, nitrogen, halogen or additional oxy in alcohol moiety)
Patent 5221763: Prostaglandins of the F series
(ORGANIC COMPOUNDS -- PART OF THE CLASS 532-570 SERIES : : Carboxylic acid esters : Cyclopentyl in acid moiety (e.g., prostaglandins, etc.) : Two rings only in acid moiety)
Patent 5221764: Methods and compositions for inhibiting acrylic acid polymerization
(ORGANIC COMPOUNDS -- PART OF THE CLASS 532-570 SERIES : : Carboxylic acid esters : Acyclic acid moiety : Unsaturation in acid moiety : Preparing esters by esterification or carbonylation)
Patent 5221765: Racemization process for an optically active carboxylic acid or ester thereof
(ORGANIC COMPOUNDS -- PART OF THE CLASS 532-570 SERIES : : Carboxylic acids and salts thereof : Racemization or separation of optical isomers : Purification or recovery)
Patent 5221766: Method for producing .alpha.-(p-isobutylphenyl) propionic 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 : Of oxy or carbonyl containing compound : Hypohalite as oxidant : Initiator or promoter used with catalyst)
Patent 5221767: Compositions of the formula Mo.sub.12 P.sub.a V.sub.b X.sup.1 c X.sup.2 d X.sup.3 e Sb.sub.f Re.sub.g S.sub.h O.sub.n
(ORGANIC COMPOUNDS -- PART OF THE CLASS 532-570 SERIES : : Carboxylic acids and salts thereof : Acyclic : Formation of carboxyl group by oxidation : Of aldehyde : Producing unsaturated acid : With recycle or recovery of reaction component)
Patent 5221768: Process for the production of deuterated acid or deuterated methacrylic acid
(ORGANIC COMPOUNDS -- PART OF THE CLASS 532-570 SERIES : : Carboxylic acids and salts thereof : Acyclic : Unsaturated : Oxalic acid per se or salt thereof)
Patent 5221769: Production of p-acetylaminophenol from p-aminophenyl acetate
(ORGANIC COMPOUNDS -- PART OF THE CLASS 532-570 SERIES : : AMINO NITROGEN CONTAINING (E.G., UREA, SULFONAMIDES, NITROSAMINES, OXYAMINES, ETC., AND SALTS THEREOF) : Carboxamides (i.e., Q-CO-HNH, wherein Q is a substituent having carbon bonded directly to the carbonyl or is hydrogen and wherein any substituent replacing one or both hydrogens shown will be referred to as E) : Substituent Q is acyclic : Q is hydrogen or a lower saturated alkyl substituent : Ring in a substituent E : Benzene ring in a substituent E : Hydroxy, bonded directly to carbon, or ether in a substituent E (H of -OH may be replaced by a substituted or unsubstituted ammonium ion or a Group IA or IIA light metal) : Polycyclo ring system in a substituent E)
Patent 5221770: Process for the preparation of 2-amino-5,6-dimethoxy-tetralin
(ORGANIC COMPOUNDS -- PART OF THE CLASS 532-570 SERIES : : AMINO NITROGEN CONTAINING (E.G., UREA, SULFONAMIDES, NITROSAMINES, OXYAMINES, ETC., AND SALTS THEREOF) : Benzene ring containing : Polycyclo ring system : Bicyclo ring system : By direct hydrogenation)
Patent 5221771: Activated polymers and conjugates thereof
(ORGANIC COMPOUNDS -- PART OF THE CLASS 532-570 SERIES : : AMINO NITROGEN CONTAINING (E.G., UREA, SULFONAMIDES, NITROSAMINES, OXYAMINES, ETC., AND SALTS THEREOF) : Benzene ring containing : Hydroxy, bonded directly to carbon, or ether containing (H of -OH may be replaced by a substituted or unsubstituted ammonium ion or a Group IA or IIA light metal) : Of compound having amino nitrogen and hydroxy bonded directly to the benzene ring (H of -OH may be replaced by a substituted or unsubstituted ammonium ion or a Group IA or IIA light metal))
Patent 5221772: Preparation of 2-hydroxyphenyl-acetic acid
(ORGANIC COMPOUNDS -- PART OF THE CLASS 532-570 SERIES : : Carboxylic acids and salts thereof : Aromatic : Oxy : Phenolic hydroxy or metallate : Phenolic hydroxy or metallate)
Patent 5221773: Process for purifying boric acid for hydrocarbon oxidation
(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 : Preparing by alcoholysis, hydrolysis, or saponification of ester of polybasic inorganic acid : Boric acid : Catalyst utilized)
Patent 5221774: Ethylene oligomerization
(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. : Removal of hydrocarbon fraction)
Patent 5221775: Ethylene dimerization
(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. : Removal of hydrocarbon fraction)
Patent 5221776: selective isomerization of olefinic hydrocarbons
(CHEMISTRY OF HYDROCARBON COMPOUNDS : UNSATURATED COMPOUND SYNTHESIS : By skeletal isomerization : Using transition metal-containing catalyst)
Patent 5221777: Isoparaffin:olefin alkylation process employing Lewis-acid promoted pillared layered silicate
(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 : B-containing : With additional nonhydrocarbon agent)
Patent 5221778: Multiplex gene regulation
(MULTICELLULAR LIVING ORGANISMS AND UNMODIFIED PARTS THEREOF AND RELATED PROCESSES : METHOD OF USING A TRANSGENIC NONHUMAN ANIMAL TO MANUFACTURE A PROTEIN WHICH IS THEN TO BE ISOLATED OR EXTRACTED :)
Patent 5221780: 1-(2,6-dimethylphenyloxy)-2-alkanols and perfume compositions containing the same
(PERFUME COMPOSITIONS : PERFUME COMPOSITIONS : Ring containing active ingredient : Benzene ring : Oxygen single bonded directly to the ring system)
Patent 5221781: Filler-incorporated thermoplastic resin composition
(SYNTHETIC RESINS OR NATURAL RUBBERS -- PART OF THE CLASS 520 SERIES : : : Adding a NRM to a preformed solid polymer or preformed specified intermediate condensation product, composition thereof; or process of treating or composition thereof : DNRM which is other than silicon dioxide, glass, titanium dioxide, water, halohydrocarbon, hydrocarbon, or elemental carbon : Inorganic compound devoid of a silicon atom DNRM : A single type of metal atom and only oxygen atoms DNRM, e.g., metal oxide, etc. : Group IIA metal atom (i.e., Be, Mg, Ca, Sr, Ba) : Solid polymer derived from unsaturated hydrocarbon monomer)
Patent 5221782: Composition for injection molding
(SYNTHETIC RESINS OR NATURAL RUBBERS -- PART OF THE CLASS 520 SERIES : : : Adding a NRM to a preformed solid polymer or preformed specified intermediate condensation product, composition thereof; or process of treating or composition thereof : DNRM which is other than silicon dioxide, glass, titanium dioxide, water, halohydrocarbon, hydrocarbon, or elemental carbon : Soil or inorganic silicon DNRM (other than silicon dioxide, glass, quartz, novaculite, or silicon dioxide type) : Talc (soapstone) DNRM : Metal atom other than aluminum, e.g., zeolites, etc.)
Patent 5221783: Low dielectric constant polyurethane filleting composition
(SYNTHETIC RESINS OR NATURAL RUBBERS -- PART OF THE CLASS 520 SERIES : : : Preparation of intentional or desired composition by formation of a solid polymer (SP) or SICP in presence of a designated nonreactant material (DNRM) other than solely water, hydrocarbon, silicon dioxide, glass, titanium dioxide or elemental carbon, composition thereof; or process of treating or composition thereof : Boron-containing DNRM : Nitrogen-containing reactant)
Patent 5221784: Silicone rubber composition
(SYNTHETIC RESINS OR NATURAL RUBBERS -- PART OF THE CLASS 520 SERIES : : : Preparation of intentional or desired composition by formation of a solid polymer (SP) or SICP in presence of a designated nonreactant material (DNRM) other than solely water, hydrocarbon, silicon dioxide, glass, titanium dioxide or elemental carbon, composition thereof; or process of treating or composition thereof : N-containing organic compound excluding unsubstituted ammonium as sole nitrogen in DNRM : Containing phenol or carboxylic acid or derivative DNRM)
Patent 5221785: Polymer composite and rubber contacts
(SYNTHETIC RESINS OR NATURAL RUBBERS -- PART OF THE CLASS 520 SERIES : : MIXING OF TWO OR MORE SOLID POLYMERS; MIXING OF SOLID POLYMER OR SICP WITH SICP OR SPFI; MIXING OF SICP WITH AN ETHYLENIC AGENT; MIXING OF SOLID POLYMER WITH A CHEMICAL TREATING OR ETHYLENIC AGENT; OR PROCESSES OF FORMING OR REACTING; OR THE RESULTANT PRODUCT OF ANY OF THE ABOVE OPERATIONS : At least one solid polymer derived from ethylenic reactants only : With saturated -N=C=X (X is chalcogen) reactant or polymer thereof; or with solid copolymer derived from at least one -N=C=X reactant wherein at least one of the reactants forming the solid copolymer is saturated; or with SPFI wherein at least one of the necessary ingredients contains a -N=C=X group or with a reaction product thereof; or with SICP containing a -N=C=X group : Polymer derived from ethylenic reactants only derived from unsaturated hydrocarbon)
Patent 5221786: Process for the preparation of polythiophenes and electrically conducting devices containing them
(SYNTHETIC RESINS OR NATURAL RUBBERS -- PART OF THE CLASS 520 SERIES : : POLYMERS FROM ONLY ETHYLENIC MONOMERS OR PROCESSES OF POLYMERIZING, POLYMERIZABLE COMPOSITIONS CONTAINING ONLY ETHYLENIC MONOMERS AS REACTANTS OR PROCESSES OF PREPARING : Polymerizing in the presence of a specified material other than monomer : Material contains transition metal or compound thereof : In presence of water : Group VIII transition metal (Fe, Co, Ni, Ru, Rh, Pd, Os, Ir, Pt) :)
Patent 5221787: Method of preparing maleic anhydride terpolymers
(SYNTHETIC RESINS OR NATURAL RUBBERS -- PART OF THE CLASS 520 SERIES : : POLYMERS FROM ONLY ETHYLENIC MONOMERS OR PROCESSES OF POLYMERIZING, POLYMERIZABLE COMPOSITIONS CONTAINING ONLY ETHYLENIC MONOMERS AS REACTANTS OR PROCESSES OF PREPARING : From monomer containing oxygen as part of a heterocyclic ring : 5-membered heterocyclic ring compound contains at least one oxygen atom : Acid anhydride : Interpolymerized with hydrocarbon monomer : Ingredient contains water, e.g., an emulsion, dispersion, etc.)
Patent 5221788: Polyurethane polyol and polyurethane coating composition employing said polyol
(SYNTHETIC RESINS OR NATURAL RUBBERS -- PART OF THE CLASS 520 SERIES : : FROM REACTANT HAVING AT LEAST ONE -N=C=X GROUP (WHEREIN X IS A CHALCOGEN ATOM) AS WELL AS PRECURSORS THEREOF, E.G., BLOCKED ISOCYANATE, ETC. : With reactant containing at least two -XH groups : Reactant which contains at least two -C-C(=X)-X-C groups has been derived from only a dicarboxylic acid or derivative and only a dihydric alcohol or alcoholate derivative)
Patent 5221789: Interferon-gamma receptor fragment and its production
(CHEMISTRY: NATURAL RESINS OR DERIVATIVES; PEPTIDES OR PROTEINS; LIGNINS OR REACTION PRODUCTS THEREOF : PROTEINS, I.E., MORE THAN 100 AMINO ACID RESIDUES : Chemical aftertreatment, e.g., acylation, methylation, etc.)
Patent 5221790: Mixed polysaccharide precipitating agents and insulating articles shaped therefrom
(ORGANIC COMPOUNDS -- PART OF THE CLASS 532-570 SERIES : : Carbohydrates or derivatives : Plural diverse saccharides containing (e.g., hetero polysaccharides, etc.) : Carboxylic)
Patent 5221791: Water-soluble biologically active ammonium salts
(ORGANIC COMPOUNDS -- PART OF THE CLASS 532-570 SERIES : : : Hetero ring is six-membered consisting of one nitrogen and five carbons : Polycyclo ring system having the six-membered hetero ring as one of the cyclos : Bicyclo ring system having the six-membered hetero ring as one of the cyclos : Quinolines (including hydrogenated) : Unsaturated hetero ring attached directly to the quinoline ring system by nonionic bonding : The six-membered hetero ring is unsubstituted or alkyl substituted only)
Patent 5221792: Derivatives from 3,4-dehydro-piperidin-5-one exhibiting a herbicidal activity
(ORGANIC COMPOUNDS -- PART OF THE CLASS 532-570 SERIES : : : Hetero ring is six-membered consisting of one nitrogen and five carbons : Chalcogen bonded directly to ring carbon of the six-membered hetero ring : Plural chalcogens bonded directly to ring carbons of the six-membered hetero ring : Halogen bonded directly to the six-membered hetero ring by nonionic bonding)
Patent 5221793: Polycyclic diamines
(ORGANIC COMPOUNDS -- PART OF THE CLASS 532-570 SERIES : : : Hetero ring is six-membered consisting of one nitrogen and five carbons : Polycyclo ring system having the six-membered hetero ring as one of the cyclos : Pentacyclo ring system having the six-membered hetero ring as one of the cyclos : Plural ring hetero atoms in the pentacyclo ring system : Three or more ring hetero atoms in the pentacyclo ring system : A single chalcogen is bonded directly to ring carbon of the pentacyclo ring system (e.g., desoxy morphine, etc.))
Patent 5221794: Process and composition for multicomponent one hundred percent solid fabric softeners
(CLEANING COMPOSITIONS FOR SOLID SURFACES, AUXILIARY COMPOSITIONS THEREFOR, OR PROCESSES OF PREPARING THE COMPOSITIONS : CLEANING COMPOSITIONS OR PROCESSES OF PREPARING (E.G., SODIUM BISULFATE COMPONENT, ETC.) : For cleaning a specific substrate or removing a specific contaminant (e.g., for smoker`s pipe, etc.) : For textile material (e.g., laundry detergent, etc.) : With nitrogen, oxygen, or sulfur containing textile softening or antistatic component : Quaternary nitrogen or phosphorus, or heterocyclic nitrogen containing fabric softener or antistatic component : Quaternary nitrogen or phosphorus, or heterocyclic nitrogen containing fabric softener or antistatic component)
Patent 5221795: Process for producing olefin oxides
(ORGANIC COMPOUNDS -- PART OF THE CLASS 532-570 SERIES : : : Oxygen containing hetero ring (e.g., dioxirane, etc.) : The hetero ring is three-membered consisting of one oxygen and two carbons : Processes : Oxirane ring formed : Epoxidation at site of ethylenic unsaturation : Liquid phase epoxidation : Hydrogen peroxide utilized : Boron containing catalyst utilized)
Patent 5221796: Glycerol derivatives
(ORGANIC COMPOUNDS -- PART OF THE CLASS 532-570 SERIES : : Fatty compounds having an acid moiety which contains the carbonyl of a carboxylic acid, salt, ester, or amide group bonded directly to one end of an acyclic chain of at least seven (7) uninterrupted carbons, wherein any additional carbonyl in the acid moiety is (1) part of an aldehyde or ketone group, (2) bonded directly to a noncarbon atom which is between the additional carbonyl and the chain, or (3) attached indirectly to the chain via ionic bonding : Phosphorus containing : Glycerophosphates (e.g., phosphatidic acids, phosphatidyl inositol, etc.) : Purification or recovery)
Patent 5221797: Process for the purification of pseudo-ionone and a complex formed during said process
(ORGANIC COMPOUNDS -- PART OF THE CLASS 532-570 SERIES : : HEAVY METAL CONTAINING (e.g., Ga, In or T1, etc.) : Boron containing : Nitrogen containing preservative or stabilizer)
Patent 5221798: Changing the regiopurity of mixtures containing 4,4'-disubstituted diphenyl carbonates
(ORGANIC COMPOUNDS -- PART OF THE CLASS 532-570 SERIES : : Carbonate esters (i.e, compounds having the -O-C(=O)O- group bonded directly to at least one carbon, which carbon may be single bonded to any atom but may be multiple bonded only to carbon) : Benzene ring bonded directly to the -O-C(=O)O- group : Nitrogen bonded directly to the benzene ring : Nitrogen attached directly or indirectly to the benzene ring by nonionic bonding)
Patent 5221799: New 15-dehydroxy-16-oxoprostaglandins
(ORGANIC COMPOUNDS -- PART OF THE CLASS 532-570 SERIES : : Carboxylic acid esters : Cyclopentyl in acid moiety (e.g., prostaglandins, etc.) : Two rings only in acid moiety)
Patent 5221800: One step air oxidation of cyclohexane to produce adipic acid
(ORGANIC COMPOUNDS -- PART OF THE CLASS 532-570 SERIES : : Carboxylic acids and salts thereof : Acyclic : Formation of carboxyl group by oxidation : Of hydrocarbon : Alicyclic : Group V metal containing catalyst utilized)
Patent 5221801: Automatic accompaniment musical apparatus having programmable gradual tempo variation device
(MUSIC : INSTRUMENTS : Electrical musical tone generation : Data storage : Digital memory circuit (e.g., RAM, ROM, etc.) : Note sequence : Accompaniment : Rhythm : Tempo control :)
Patent 5221802: Device for detecting contents of a bass and chord accompaniment
(MUSIC : INSTRUMENTS : Electrical musical tone generation : Data storage : Digital memory circuit (e.g., RAM, ROM, etc.) : Accompaniment : Chords : Tempo control)
Patent 5221803: Tone signal generation from fewer circuits
(MUSIC : INSTRUMENTS : Electrical musical tone generation : Digital combinational circuit : Selecting circuits : Accompaniment (e.g., chords, etc.))
Patent 5221804: Tone generation device for an electronic musical instrument
(MUSIC : INSTRUMENTS : Electrical musical tone generation : Digital combinational circuit : Selecting circuits : Force or velocity responsive : Rhythm)
Patent 5221805: Add-on modification device for string instrument pickup
(MUSIC : INSTRUMENTS : Electrical musical tone generation : Transducers : Electromagnetic : String : Tempo control)
Patent 5221806: Multiple purpose die for reloading press
(AMMUNITION AND EXPLOSIVE-CHARGE MAKING : : Lubricating : Primer, primer anvil, percussion cap making)
Patent 5221807: Ballistic protection armor
(ORDNANCE : SHIELDS : Shape or composition : Disintegrating type)
Patent 5221808: Shaped charge liner including bismuth
(AMMUNITION AND EXPLOSIVES : BLASTING : Detonation wave modifying : Shaped charge or charge with detonation wave cavity modifier : Linear or curvilinear cavity :)
Patent 5221809: Non-lethal weapons system
(AMMUNITION AND EXPLOSIVES : CARTRIDGES : Projectile structure : Telescoping powder charge)
Patent 5221810: Embedded can booster
(AMMUNITION AND EXPLOSIVES : SHELLS : Focused or directed detonation : Breech end structure)
Patent 5221811: Shock mounting housing apparatus
(ELECTRICITY: CONDUCTORS AND INSULATORS : BOXES AND HOUSINGS : With electric device or mounting means therefor : With bonded seal for conductive member (e.g., glass to metal))
Patent 5221812: System for protecting leads to a semiconductor chip package during testing, burn-in and handling
(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 5221813: Cable block for controlling cable routing in a terminal
(ELECTRICITY: CONDUCTORS AND INSULATORS : BOXES AND HOUSINGS : With conduit or cable opening, coupling means or hole closures : Fixtures coupling or mounting means)
Patent 5221814: Blind mounting face plate and anchor means
(ELECTRICITY: CONDUCTORS AND INSULATORS : COVERS OR FACE PLATES : With conduit or cable opening, coupling means or hole closures)
Patent 5221815: Heat recoverable soldering device
(ELECTRICITY: CONDUCTORS AND INSULATORS : CONDUITS, CABLES OR CONDUCTORS : Combined : With joints : Insulating cap or sleeve)
Patent 5221816: Plunger switch
(ELECTRICITY: CIRCUIT MAKERS AND BREAKERS : MULTIPLE CIRCUIT CONTROL : Reciprocating contact : Plunger type : Leaf spring contacts)
Patent 5221817: Heating apparatus
(ELECTRIC HEATING : MICROWAVE HEATING : With control system : With display or alarm : Having duty cycle)
Patent 5221818: Box header welding method and apparatus
(ELECTRIC HEATING : METAL HEATING (E.G., RESISTANCE HEATING) : Of cylinders (e.g., pipes and tubes) : Electric arc : Methods : Portable)
Patent 5221819: Ceramic soldering element
(ELECTRIC HEATING : METAL HEATING (E.G., RESISTANCE HEATING) : For bonding with pressure (e.g., resistance welding) : Brazing or soldering : Electrically heated tool (e.g., electrodes, heaters, etc.) : Methods)
Patent 5221820: Laser cigarette lighter
(ELECTRIC HEATING : METAL HEATING (E.G., RESISTANCE HEATING) : By arc : Using laser : Methods)
Patent 5221821: Method for producing an extruder barrel assembly
(ELECTRIC HEATING : METAL HEATING (E.G., RESISTANCE HEATING) : By arc : Using electron beam : Welding : Methods : By interposed button)
Patent 5221822: Laser working method and head
(ELECTRIC HEATING : METAL HEATING (E.G., RESISTANCE HEATING) : By arc : Using laser : Welding : Condition responsive)
Patent 5221823: Laser machining apparatus for welding and cutting
(ELECTRIC HEATING : METAL HEATING (E.G., RESISTANCE HEATING) : By arc : Using laser : Beam position control : With sing source)
Patent 5221824: Work rotating apparatus for laser machining having a hollow output shaft
(ELECTRIC HEATING : METAL HEATING (E.G., RESISTANCE HEATING) : By arc : Using laser : Workpiece position control : Condition responsive)
Patent 5221825: Sensing of gas metal arc welding process characteristics for welding process control
(ELECTRIC HEATING : METAL HEATING (E.G., RESISTANCE HEATING) : By arc : Including circuits for monitoring arc parameters : Vertical work (e.g., horizontal seam in vertical wall))
Patent 5221826: MIG welding torch reconditioning apparatus
(ELECTRIC HEATING : METAL HEATING (E.G., RESISTANCE HEATING) : By arc : Welding : With generator (e.g., gas engine driven))
Patent 5221827: Heater blanket for in-situ soil heating
(ELECTRIC HEATING : HEATING DEVICES : Methods)
Patent 5221828: Heated wiper blade using conductive elastomer
(ELECTRIC HEATING : HEATING DEVICES : Combined with diverse-type art device : Vehicle or vehicle component : Riveting)
Patent 5221829: Domestic cooking apparatus
(ELECTRIC HEATING : HEATING DEVICES : Combined with container, enclosure, or support for material to be heated : Exposed horizontal planar support surface for material to be heated (e.g., hot plate, etc.) : Having sensor : Responsive to temperature : Bimetallic or other flexible means)
Patent 5221830: Method of ordering displayed document images in an image based document processing system
(DATA PROCESSING: FINANCIAL, BUSINESS PRACTICE, MANAGEMENT, OR COST/PRICE DETERMINATION : AUTOMATED ELECTRICAL FINANCIAL OR BUSINESS PRACTICE OR MANAGEMENT ARRANGEMENT : Accounting : Itemization of parts, supplies, or services (e.g., bill of materials))
Patent 5221831: Flap-type portal reader
(REGISTERS : CODED RECORD SENSORS : Particular sensor structure : Multiple sensor : With tabular chart, scale, or graph)
Patent 5221832: Raster variation method for omnidirectional optical scanners
(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 5221833: Methods and means for reducing bit error rates in reading self-clocking glyph codes
(REGISTERS : RECORDS : Particular code pattern : Aligning records)
Patent 5221834: Method for providing feedback correction for an imaging device
(RADIANT ENERGY : PHOTOCELLS; CIRCUITS AND APPARATUS : Photocell controls its own optical systems : Light beam wavefront phase adaptation : Based on image shift)
Patent 5221835: Image reading apparatus having a reflective blazed diffraction grating with varied pitch
(RADIANT ENERGY : PHOTOCELLS; CIRCUITS AND APPARATUS : Photocell controlled circuit : Plural photosensitive image detecting element arrays : With comparison)
Patent 5221836: Streak tube having an arrangement for suppressing travel time spread of photoelectrons
(RADIANT ENERGY : PHOTOCELLS; CIRCUITS AND APPARATUS : Photocell controlled circuit : Special photocell or electron tube circuits : Amplifier type : Light amplifier type : Vacuum tube type :)
Patent 5221837: Non-contact envelope counter using distance measurement
(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 5221838: Electronic wallet
(REGISTERS : SYSTEMS CONTROLLED BY DATA BEARING RECORDS : Banking systems : Price determination)
Patent 5221839: Double bevel gradient-index rod lens optical receiver having high optical return loss
(RADIANT ENERGY : PHOTOCELLS; CIRCUITS AND APPARATUS : Optical or pre-photocell system : Light conductor : With coupling enhancement means : Keyboard or other manual switch controlled)
Patent 5221840: Diffuse light collector
(RADIANT ENERGY : PHOTOCELLS; CIRCUITS AND APPARATUS : Optical or pre-photocell system : Integrating sphere : Inanimate article)
Patent 5221841: Fast atom beam source
(RADIANT ENERGY : ELECTRICALLY NEUTRAL MOLECULAR OR ATOMIC BEAM DEVICES AND METHODS :)
Patent 5221842: Self-contained calibrators/irradiators for personal dosimeters
(RADIANT ENERGY : CALIBRATION OR STANDARDIZATION METHODS :)
Patent 5221843: Active energy selective x-ray image detection
(RADIANT ENERGY : SOURCE WITH RECORDING DETECTOR : Using a stimulable phosphor : With image recording : For specialized application : With detector control or regulating)
Patent 5221844: Charged particle beam device
(RADIANT ENERGY : WITH CHARGED PARTICLE BEAM DEFLECTION OR FOCUSSING : With target means : Hoods, grating, baffles, diaphragms, masks)
Patent 5221845: Frictionless linear actuator
(RADIANT ENERGY : INSPECTION OF SOLIDS OR LIQUIDS BY CHARGED PARTICLES : Analyte supports : With object moving or positioning means : With detector)
Patent 5221846: Radiographic system with improved image quality
(RADIANT ENERGY : INVISIBLE RADIATION RESPONSIVE NONELECTRIC SIGNALLING : Luminescent device : With radiation filter, modifier, or shield (e.g., dosimeter badges))
Patent 5221847: Break-before-make control for form C solid-state relays with current limiter bypass
(RADIANT ENERGY : PHOTOCELLS; CIRCUITS AND APPARATUS : Signal isolator : Controlling light source intensity)
Patent 5221848: High dynamic range film digitizer and method of operating the same
(RADIANT ENERGY : PHOTOCELLS; CIRCUITS AND APPARATUS : With circuit for evaluating a web, strand, strip, or sheet : Evaluation of photographic film : Self-luminous target)
Patent 5221849: Semiconductor device with active quantum well gate
(ACTIVE SOLID-STATE DEVICES (E.G., TRANSISTORS, SOLID-STATE DIODES) : THIN ACTIVE PHYSICAL LAYER WHICH IS (1) AN ACTIVE POTENTIAL WELL LAYER THIN ENOUGH TO ESTABLISH DISCRETE QUANTUM ENERGY LEVELS OR (2) AN ACTIVE BARRIER LAYER THIN ENOUGH TO PERMIT QUANTUM MECHANICAL TUNNELING OR (3) AN ACTIVE LAYER THIN ENOUGH TO PERMIT CARRIER TRANSMISSION WITH SUBSTANTIALLY NO SCATTERING (E.G., SUPERLATTICE QUANTUM WELL, OR BALLISTIC TRANSPORT DEVICE) : Heterojunction : Quantum well : Superlattice : Field effect device : Si x Ge 1-x)
Patent 5221850: Conductivity-modulating MOSFET
(ACTIVE SOLID-STATE DEVICES (E.G., TRANSISTORS, SOLID-STATE DIODES) : REGENERATIVE TYPE SWITCHING DEVICE (E.G., SCR, COMFET, THYRISTOR) : Device protection (e.g., from overvoltage) : Surface feature (e.g., guard ring, groove, mesa, etc.))
Patent 5221851: Controlled-turn-off high-power semiconductor component
(ACTIVE SOLID-STATE DEVICES (E.G., TRANSISTORS, SOLID-STATE DIODES) : REGENERATIVE TYPE SWITCHING DEVICE (E.G., SCR, COMFET, THYRISTOR) : With housing or external electrode : Located in an emitter-gate region)
Patent 5221852: Charge coupled device and method of producing the same
(ACTIVE SOLID-STATE DEVICES (E.G., TRANSISTORS, SOLID-STATE DIODES) : FIELD EFFECT DEVICE : Charge transfer device : Majority signal carrier (e.g., buried or bulk channel, or peristaltic) : Impurity concentration variation : Along the length of the channel (e.g., doping variations for transfer directionality) : Si x Ge 1-x)
Patent 5221853: MOSFET with a refractory metal film, a silicide film and a nitride film formed on and in contact with a source, drain and gate region
(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 : With contact to source or drain region of refractory material (e.g., polysilicon, tungsten, or silicide) : Including silicide : With barrier region of reduced minority carrier lifetime (e.g., heavily doped P+ region to reduce electron minority carrier lifetime, or containing deep level impurity or crystal damage), or with region of high threshold voltage (e.g., heavily doped channel stop region))
Patent 5221854: Protective layer for the back reflector of a photovoltaic device
(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 active region having effective impurity concentration less than 10 12 atoms/cm 3)
Patent 5221855: Monolithic vertical-type semiconductor power device with a protection against parasitic currents
(ACTIVE SOLID-STATE DEVICES (E.G., TRANSISTORS, SOLID-STATE DIODES) : INTEGRATED CIRCUIT STRUCTURE WITH ELECTRICALLY ISOLATED COMPONENTS : With contact or metallization configuration to reduce parasitic coupling (e.g., separate ground pads for different parts of integrated circuit) : High power or high voltage device extends completely through semiconductor substrate (e.g., backside collector contact))
Patent 5221856: Bipolar transistor with floating guard region under extrinsic base
(ACTIVE SOLID-STATE DEVICES (E.G., TRANSISTORS, SOLID-STATE DIODES) : INTEGRATED CIRCUIT STRUCTURE WITH ELECTRICALLY ISOLATED COMPONENTS : Including dielectric isolation means : Combined with pn junction isolation (e.g., isoplanar, LOCOS) : Dielectric in groove : With bipolar transistor structure : With polycrystalline connecting region (e.g., polysilicon base contact) : Silicide of refractory metal)
Patent 5221857: Bipolar transistor structure with polycrystalline resistor layer
(ACTIVE SOLID-STATE DEVICES (E.G., TRANSISTORS, SOLID-STATE DIODES) : INTEGRATED CIRCUIT STRUCTURE WITH ELECTRICALLY ISOLATED COMPONENTS : Passive components in ICs : Including resistive element : Combined with bipolar transistor : Polycrystalline silicon (doped or undoped))
Patent 5221858: Tape automated bonding (TAB) semiconductor device with ground plane and method for making the same
(ACTIVE SOLID-STATE DEVICES (E.G., TRANSISTORS, SOLID-STATE DIODES) : LEAD FRAME : On integrated circuit)
Patent 5221859: Lead frame for semiconductor device
(ACTIVE SOLID-STATE DEVICES (E.G., TRANSISTORS, SOLID-STATE DIODES) : LEAD FRAME : With structure for mounting semiconductor chip to lead frame (e.g., configuration of die bonding flag, absence of a die bonding flag, recess for LED) : Of insulating material)
Patent 5221860: High speed laser package
(ACTIVE SOLID-STATE DEVICES (E.G., TRANSISTORS, SOLID-STATE DIODES) : HOUSING OR PACKAGE : Of specified material other than copper (e.g., Kovar (T.M.)))
Patent 5221861: Voltage maintenance system
(ELECTRICAL TRANSMISSION OR INTERCONNECTION SYSTEMS : VEHICLE MOUNTED SYSTEMS : Different voltages)
Patent 5221862: A.C. electrical power supply system including a backup power supply equipped with an inverter operating in reversible mode
(ELECTRICAL TRANSMISSION OR INTERCONNECTION SYSTEMS : PLURAL SUPPLY CIRCUITS OR SOURCES : Substitute or emergency source : Storage battery or accumulator : Serially connected sources)
Patent 5221863: Phase-locked loop clock signal generator
(MISCELLANEOUS ACTIVE ELECTRICAL NONLINEAR DEVICES, CIRCUITS, AND SYSTEMS : SIGNAL CONVERTING, SHAPING, OR GENERATING : Synchronizing : With feedback : Phase lock loop : With charge pump : With digital element)
Patent 5221864: Stable voltage reference circuit with high Vt devices
(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 : Having stabilized bias or power supply level : With field-effect transistor : With emitter follower)
Patent 5221865: Programmable input/output buffer circuit with test capability
(ELECTRONIC DIGITAL LOGIC CIRCUITRY : INTERFACE (E.G., CURRENT DRIVE, LEVEL SHIFT, ETC.) : Current driving (e.g., fan in/out, off chip driving, etc.) : Field-effect transistor : Bus driving : Having plural output pull-up or pull-down transistors)
Patent 5221866: Sequential logic circuit having state hold circuits
(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 5221867: Programmable logic array with internally generated precharge and evaluation timing
(ELECTRONIC DIGITAL LOGIC CIRCUITRY : MULTIFUNCTIONAL OR PROGRAMMABLE (E.G., UNIVERSAL, ETC.) : Array (e.g., PLA, PAL, PLD, etc.) : With field effect-transistor)
Patent 5221868: Electrically assisted gravity powered motor
(ELECTRICAL GENERATOR OR MOTOR STRUCTURE : DYNAMOELECTRIC : Rotary : With other elements : Drive mechanism : Motion conversion : Unbalanced weight (e.g., vibrators) : Ignition systems)
Patent 5221869: Motor assembly for chain-drive garage door operator
(ELECTRICAL GENERATOR OR MOTOR STRUCTURE : DYNAMOELECTRIC : Rotary : With other elements : Drive mechanism : Motion conversion : Gearing : Ignition systems)
Patent 5221870: Surface acoustic wave device
(ELECTRICAL GENERATOR OR MOTOR STRUCTURE : NON-DYNAMOELECTRIC : Piezoelectric elements and devices : Surface acoustic wave devices : Orientation of piezoelectric material :)
Patent 5221871: Surface wave gas sensor
(ELECTRICAL GENERATOR OR MOTOR STRUCTURE : NON-DYNAMOELECTRIC : Piezoelectric elements and devices : Surface acoustic wave devices : Friction)
Patent 5221872: Piezoelectric ceramics and their production methods
(ELECTRICAL GENERATOR OR MOTOR STRUCTURE : NON-DYNAMOELECTRIC : Piezoelectric elements and devices : Orientation of piezoelectric polarization : Ceramic composition (e.g., barium titanate) : Spring bias)
Patent 5221873: Pressure transducer with quartz crystal of singly rotated cut for increased pressure and temperature operating range
(ELECTRICAL GENERATOR OR MOTOR STRUCTURE : NON-DYNAMOELECTRIC : Piezoelectric elements and devices : Rotation of crystal axis (e.g., cut angle) : Quartz : More than one poling direction (e.g., Rosen transformer))
Patent 5221874: Electric lamp having lead-throughs clamped and welded to lamp cap contacts
(ELECTRIC LAMP AND DISCHARGE DEVICES : WITH ENVELOPE : Having base and connector : Plural interelectrode discharge spaces)
Patent 5221875: High resolution cathode-ray tube with high bandwidth capability
(ELECTRIC LAMP AND DISCHARGE DEVICES: SYSTEMS : CATHODE RAY TUBE CIRCUITS : Plural concentrating, accelerating, and/or de-accelerating stages : Storage tubes)
Patent 5221876: Xenon-metal halide lamp particularly suited for automotive applications
(ELECTRIC LAMP AND DISCHARGE DEVICES: SYSTEMS : SPECIAL APPLICATION : Vehicle : Head light systems : Steering mechanism controlled)
Patent 5221877: Power reduction control for inductive lighting installation
(ELECTRIC LAMP AND DISCHARGE DEVICES: SYSTEMS : CURRENT AND/OR VOLTAGE REGULATION : Circuit interrupter in the inductance circuit)
Patent 5221878: Image pick-up system
(ELECTRIC LAMP AND DISCHARGE DEVICES: SYSTEMS : CATHODE RAY TUBE CIRCUITS : Cathode-ray deflections circuits : Deflection coil circuit : With cathode-ray centering)
Patent 5221879: Method and apparatus for winding a cord continuously in dip treating apparatus
(ELECTRICITY: MOTIVE POWER SYSTEMS : WITH PARTICULAR MOTOR-DRIVEN LOAD DEVICE : Tension-maintaining type of motor-control system : Plural, diverse or diversely controlled motors :)
Patent 5221880: Underground trolley vehicle with brushless D.C. Motor
(ELECTRICITY: MOTIVE POWER SYSTEMS : BATTERY-FED MOTOR SYSTEMS : By auxiliary motor)
Patent 5221881: Method and apparatus for operating polyphase DC motors
(ELECTRICITY: MOTIVE POWER SYSTEMS : SELF-COMMUTATED IMPULSE OR RELUCTANCE MOTORS : Field circuit control)
Patent 5221882: Motor servo apparatus
(ELECTRICITY: MOTIVE POWER SYSTEMS : POSITIONAL SERVO SYSTEMS (E.G., SERVOMECHANISMS) : Power- or motion-transmitting mechanism)
Patent 5221883: System for controlling locomotion of legged walking robot
(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) : Mobile robot :)
Patent 5221884: Numerical control apparatus
(ELECTRICITY: MOTIVE POWER SYSTEMS : POSITIONAL SERVO SYSTEMS (E.G., SERVOMECHANISMS) : Program- or pattern-controlled systems : Digital or numerical systems : Multifunction manipulator (i.e., Robot))
Patent 5221885: Low-power dual voltage drive circuit and method
(ELECTRICITY: MOTIVE POWER SYSTEMS : POSITIONAL SERVO SYSTEMS (E.G., SERVOMECHANISMS) : With particular motor control system responsive to the "actuating signal" : "Step-by-step" motors in closed-loop servos : Rotating amplifier (e.g., "Ward Leonard" control))
Patent 5221886: Device for regulating the battery charging voltage delivered by an alternator
(ELECTRICITY: SINGLE GENERATOR SYSTEMS : AUTOMATIC CONTROL OF GENERATOR OR DRIVING MEANS : Voltage of generator or circuit supplied : Including an electrical condition)
Patent 5221887: Synchronous switching power supply comprising boost or flyback converter
(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 plural condition sensing : Including final control device parameter)
Patent 5221888: Current limited temperature responsive circuit
(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 5221889: Bidirectional current mirrors and method for bidirectional current conduction
(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 5221890: Reference 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 switched final control device : In flyback path)
Patent 5221891: Control circuit for a solar-powered rechargeable power source and load
(ELECTRICITY: POWER SUPPLY OR REGULATION SYSTEMS : EXTERNAL OR OPERATOR CONTROLLED : Using a three or more terminal semiconductive device as the final control device : Including plural final control devices : Including rotary motion)
Patent 5221892: Flux compression transformer
(ELECTRICITY: POWER SUPPLY OR REGULATION SYSTEMS : INCLUDING A TRANSFORMER OR AN INDUCTOR : With core having permanent magnet or air gap : For current transformer)
Patent 5221893: Method and device for diagnosis of paint film deterioration
(ELECTRICITY: MEASURING AND TESTING : DETERMINING NONELECTRIC PROPERTIES BY MEASURING ELECTRIC PROPERTIES : Erosion : Mechanically actuated switch)
Patent 5221894: Weld current sensor
(ELECTRICITY: MEASURING AND TESTING : MEASURING, TESTING, OR SENSING ELECTRICITY, PER SE : Magnetic saturation (e.g., in field or in amplifier) : With register (e.g., discount type, demand penalty))
Patent 5221895: Probe with microstrip transmission lines
(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 5221896: Position sensor arrangement for detecting a signal after a time delay from the zero crossing of the AC power source
(ELECTRICITY: MEASURING AND TESTING : MAGNETIC : Displacement : Having particular sensor means : Inductive : Electrically energized : Separate pick-up : Including plural current focussing arrays)
Patent 5221897: Directional resonance magnetometer
(ELECTRICITY: MEASURING AND TESTING : PARTICLE PRECESSION RESONANCE : Using a magnetometer : To determine direction :)
Patent 5221898: Flow imaging method using an MRI apparatus
(ELECTRICITY: MEASURING AND TESTING : PARTICLE PRECESSION RESONANCE : Determine fluid flow rate : Having particular optical cell structure)
Patent 5221899: Signal acquisition in magnetic resonance analysis
(ELECTRICITY: MEASURING AND TESTING : PARTICLE PRECESSION RESONANCE : Using a nuclear resonance spectrometer system : Having particular optical cell structure)
Patent 5221900: Magnet structure for focusing of magnetic resonance images
(ELECTRICITY: MEASURING AND TESTING : PARTICLE PRECESSION RESONANCE : Using a nuclear resonance spectrometer system : Having particular optical cell structure)
Patent 5221901: Double surface coil for a nuclear magnetic resonance apparatus
(ELECTRICITY: MEASURING AND TESTING : PARTICLE PRECESSION RESONANCE : Spectrometer components : Including a test sample and control sample)
Patent 5221902: NMR neck coil with passive decoupling
(SURGERY : DIAGNOSTIC TESTING : Detecting nuclear, electromagnetic, or ultrasonic radiation : Magnetic resonance imaging or spectroscopy : Including any system component contacting (internal or external) or conforming to body or body part : Coil : Internal)
Patent 5221903: Method for the determination of very small magnetic susceptibilities and probehead for a high resolution nmr spectrometer for the purpose of
(ELECTRICITY: MEASURING AND TESTING : PARTICLE PRECESSION RESONANCE : Spectrometer components : Sample holder structure : With homogeneity control)
Patent 5221904: Misfire-detecting system for internal combustion engines
(ELECTRICITY: MEASURING AND TESTING : INTERNAL-COMBUSTION ENGINE IGNITION SYSTEM OR DEVICE : For magnetic properties)
Patent 5221905: Test system with reduced test contact interface resistance
(ELECTRICITY: MEASURING AND TESTING : IMPEDANCE, ADMITTANCE OR OTHER QUANTITIES REPRESENTATIVE OF ELECTRICAL STIMULUS/RESPONSE RELATIONSHIPS : Lumped type parameters : Using resistance or conductance measurement : With voltage or current signal evaluation : Including a digital or logic circuit)
Patent 5221906: Program control digital pulse generator
(MISCELLANEOUS ACTIVE ELECTRICAL NONLINEAR DEVICES, CIRCUITS, AND SYSTEMS : SIGNAL CONVERTING, SHAPING, OR GENERATING : Clock or pulse waveform generating : Plural outputs : With common output)
Patent 5221907: Pseudo logarithmic analog step adder
(MISCELLANEOUS ACTIVE ELECTRICAL NONLINEAR DEVICES, CIRCUITS, AND SYSTEMS : SPECIFIC INPUT TO OUTPUT FUNCTION : Logarithmic : With summing : RMS)
Patent 5221908: Wideband integrated distortion equalizer
(AMPLIFIERS : HUM OR NOISE OR DISTORTION BUCKING INTRODUCED INTO SIGNAL CHANNEL : Electron tube or diode as impedance)
Patent 5221909: Active load biasing circuit
(AMPLIFIERS : WITH SEMICONDUCTOR AMPLIFYING DEVICE (E.G., TRANSISTOR) : Including differential amplifier : Having field effect transistor :)
Patent 5221910: Single-pin amplifier in integrated circuit form
(AMPLIFIERS : WITH SEMICONDUCTOR AMPLIFYING DEVICE (E.G., TRANSISTOR) : Including push-pull amplifier : Having complementary symmetry : And field effect transistor :)
Patent 5221911: Receiver having PLL frequency synthesizer with RC loop filter
(OSCILLATORS : AUTOMATIC FREQUENCY STABILIZATION USING A PHASE OR FREQUENCY SENSING MEANS : Particular error voltage control (e.g., intergrating network) : Motor control of oscillator)
Patent 5221912: YIG tuned band reject filter for 2-18 GHz with full one-quarter wavelength RF coupling loops
(WAVE TRANSMISSION LINES AND NETWORKS : COUPLING NETWORKS : Wave filters including long line elements : Magnetostrictive wave transmission path)
Patent 5221913: Dielectric resonator device with thin plate type dielectric heat-radiator
(WAVE TRANSMISSION LINES AND NETWORKS : RESONATORS (DISTRIBUTED PARAMETER TYPE) : Dielectric type : Providing negative resistance)
Patent 5221914: Thermally responsive switch
(ELECTRICITY: ELECTROTHERMALLY OR THERMALLY ACTUATED SWITCHES : WITH DIVERSE ART-TYPE ACTUATOR FOR SINGLE SWITCH : Bimetallic with other : With multiple circuit connector device (e.g., multiple mechanical))
Patent 5221915: Thermal protector
(ELECTRICITY: ELECTROTHERMALLY OR THERMALLY ACTUATED SWITCHES : ELECTROTHERMALLY ACTUATED SWITCHES : With bimetallic elements (i.e., motion takes place in a plane at right angles to its major axis) : With external or auxiliary heating means : Significant heating element structure or composition : Inductive means (e.g., transformer))
Patent 5221916: Heated extended resistance temperature sensor
(ELECTRICAL RESISTORS : RESISTANCE VALUE RESPONSIVE TO A CONDITION : Current and/or voltage (e.g., ballast resistor) : Indirectly heated : Semiconductor)
Patent 5221917: Resistor ribbon for resistor grids
(ELECTRICAL RESISTORS : RIBBON RESISTANCE ELEMENT BENT OR CURVED ON FLAT SIDE : Zigzag or sinuous : Element includes integral stiffening structure : Element coiled on a core)
Patent 5221918: Back-up warning lamp useful for supplemental inflatable restraint systems
(COMMUNICATIONS: ELECTRICAL : LAND VEHICLE ALARMS OR INDICATORS : Internal alarm or indicator responsive to a condition of the vehicle : Plural conditions : Of service interval expiration)
Patent 5221919: Room occupancy sensor, lens and method of lens fabrication
(COMMUNICATIONS: ELECTRICAL : CONDITION RESPONSIVE INDICATING SYSTEM : Specific condition : Intrusion detection : Responsive to intruder energy : Electromagnetic energy : Fence)
Patent 5221920: Method for determining color tolerancing of displays
(COMPUTER GRAPHICS PROCESSING AND SELECTIVE VISUAL DISPLAY SYSTEMS : COMPUTER GRAPHICS PROCESSING : Attributes (surface detail or characteristic, display attributes) : Color or intensity : Color processing in perceptual color space :)
Patent 5221921: High speed character generator
(COMPUTER GRAPHICS PROCESSING AND SELECTIVE VISUAL DISPLAY SYSTEMS : COMPUTER GRAPHICS PROCESSING : Character generating : Alteration of stored font : Character generation using control points or hints)
Patent 5221922: Broadband signal switching matrix network
(COMMUNICATIONS: ELECTRICAL : SELECTIVE : Path selection : Channel selecting matrix : Crosspoint switch detail (i.e., specific crosspoint) : Semiconductor : Including temperature detection)
Patent 5221923: Radio communication apparatus capable of generating a common call tone regardless of call numbers indicated by a call signal
(COMMUNICATIONS: ELECTRICAL : SELECTIVE : Having indication or alarm (e.g., location indication) : Code responsive (i.e., paging) : Alert : Audible : Including graphics)
Patent 5221924: Wind shear alert system
(COMMUNICATIONS: ELECTRICAL : AIRCRAFT ALARM OR INDICATING SYSTEMS : Flight alarm : Wind shear : Magnetic field guide)
Patent 5221925: Position identification system
(COMMUNICATIONS: ELECTRICAL : VEHICLE POSITION INDICATION : Rudder position indicator)
Patent 5221926: Circuit and method for cancelling nonlinearity error associated with component value mismatches in a data converter
(CODED DATA GENERATION OR CONVERSION : CONVERTER COMPENSATION : Synchro or resolver signal)
Patent 5221927: Lidar-acoustic sounding of the atmosphere
(COMMUNICATIONS: DIRECTIVE RADIO WAVE SYSTEMS AND DEVICES (E.G., RADAR, RADIO NAVIGATION) : RADAR FOR METEOROLOGICAL USE (EPO) : Mapping or imaging using synthetic aperture radar (EPO))
Patent 5221928: Method and apparatus for accurate, high speed pulse-echo measurement calibration
(COMMUNICATIONS: DIRECTIVE RADIO WAVE SYSTEMS AND DEVICES (E.G., RADAR, RADIO NAVIGATION) : WITH PARTICULAR CIRCUIT : Sensitivity time control (STC) : With pulse shaping)
Patent 5221929: Hinged magnetic antenna mount
(COMMUNICATIONS: RADIO WAVE ANTENNAS : ANTENNAS : With vehicle : Supported by vehicle body : Rod type :)
Patent 5221930: Adjustable dipole antenna
(COMMUNICATIONS: RADIO WAVE ANTENNAS : ANTENNAS : Balanced doublet - centerfed (e.g., dipole) : Adjustable length : Impedance matching network)
Patent 5221931: Driving method for ink jet recording head and ink jet recording apparatus performing the method
(INCREMENTAL PRINTING OF SYMBOLIC INFORMATION : INK JET : Controller : Of ejector : Drive waveform :)
Patent 5221932: Thermal head apparatus and method of assembling thermal head apparatus
(INCREMENTAL PRINTING OF SYMBOLIC INFORMATION : THERMAL MARKING APPARATUS OR PROCESSES : Platen or engaging means therefor : Including tensioning means)
Patent 5221933: Beam scanning galvanometer with low inertia mirror and magnet
(RECORDERS : LIGHT OR BEAM RECORDING : Mirror galvanometer : With coordinated marking)
Patent 5221934: Electrochemical resistive ink jet head
(INCREMENTAL PRINTING OF SYMBOLIC INFORMATION : INK JET : Ejector mechanism (i.e., print head) : Drop-on-demand : With electric field ejection (applied to fluid) : Movement)
Patent 5221935: Waste ink receiving cartridge and ink recording apparatus using said cartridge
(INCREMENTAL PRINTING OF SYMBOLIC INFORMATION : INK JET : Ejector mechanism (i.e., print head) : With cleaning or protector : Waste storage : Movement)
Patent 5221936: Ink tank having a vent path opened and closed by a movable magnetic member
(INCREMENTAL PRINTING OF SYMBOLIC INFORMATION : INK JET : Fluid or fluid source handling means : Fluid supply system : Cartridge : Drop correction)
Patent 5221937: Video mannequin
(OPTICS: IMAGE PROJECTORS : PROJECTED IMAGE COMBINED WITH REAL OBJECT : Plural picture rows on single microcard)
Patent 5221938: Color cathode ray tube screen exposure apparatus
(PHOTOGRAPHY : EXPOSING MULTICOLOR CATHODE-RAY TUBE TARGETS : Vignetter)
Patent 5221939: Photographic camera
(PHOTOGRAPHY : WITH DATA RECORDING : Magnetically on film or film cassette : Recording head position control : Having auxiliary illumination)
Patent 5221940: Film feeder for a camera
(PHOTOGRAPHY : WITH FILM DRIVE : Mechanical detail : Having threading structure : Having film transport mechanism locked by perforation sensing pawl)
Patent 5221941: TTL multiple flash control device
(PHOTOGRAPHY : WITH OBJECT ILLUMINATION FOR EXPOSURE : Having preexposure illumination : Including focusing screen)
Patent 5221942: Controlling charging of a flash device
(PHOTOGRAPHY : WITH OBJECT ILLUMINATION FOR EXPOSURE : With power supply detail : Having DC to DC converter : Indicating power source status)
Patent 5221943: Image forming apparatus
(ELECTROPHOTOGRAPHY : HAVING PARTICULAR STRUCTURE : Modular or displaceable : Process cartridge unit : Developer seal)
Patent 5221944: Liquid electrophotographic method and an apparatus therefor
(ELECTROPHOTOGRAPHY : IMAGE FORMATION : Development : Plural diverse (e.g., color) : Liquid : Opposite polarity)
Patent 5221945: Toner cartridge having an air passageway
(ELECTROPHOTOGRAPHY : INTERNAL MACHINE ENVIRONMENT : Particle or contaminant control : Seal : Developer seal : Toner cartridge : Optical detector)
Patent 5221946: Image forming apparatus
(ELECTROPHOTOGRAPHY : IMAGE FORMATION : Combined or plural functions by single component : Development and cleaning : Simultaneously : Toner cartridge)
Patent 5221947: Internally heated roller assembly for toner image fixing apparatus
(ELECTRIC HEATING : HEATING DEVICES : Combined with container, enclosure, or support for material to be heated : Cylindrical or roller-type support for material to be heated : Heating element is in a groove formed on underside of the exposed horizontal planar support surface (e.g., cast metal plate, etc.))
Patent 5221948: Multiple rate ram system
(ELECTROPHOTOGRAPHY : IMAGE FORMATION : Fixing (e.g., fusing) : Offset prevention : Parting agent applicator : Retractable)
Patent 5221949: Feeding timing control for an image forming apparatus
(ELECTROPHOTOGRAPHY : DOCUMENT HANDLING : Copy : Feeding to transfer position : Having detection of size or type : Length adjustment)
Patent 5221950: Device for correcting for corrugation induced in a sheet as a result of passing through transport nips
(ELECTROPHOTOGRAPHY : DOCUMENT HANDLING : Copy : Delivering from transfer position : In registration with image)
Patent 5221951: Sheet-feeding apparatus having sheet storing means with sheet removal from either side
(ELECTROPHOTOGRAPHY : DOCUMENT HANDLING : Copy : Feeding to transfer position : Copy medium input tray : Manual feed)
Patent 5221952: Means for separating image recording medium in electrophotographic recording apparatus
(ELECTROPHOTOGRAPHY : IMAGE FORMATION : Transfer : Electrostatic : Having discharger (e.g., separation) : Having belt transporting copy)
Patent 5221953: Copying apparatus including a sorter with a sheet binding function
(ELECTROPHOTOGRAPHY : DIAGNOSTICS : Document handling : Electrostatic)
Patent 5221954: Single pass full color printing system using a quad-level xerographic unit
(ELECTROPHOTOGRAPHY : IMAGE FORMATION : Development : Plural diverse (e.g., color) : Toner images overlapped : Opposite polarity : Optical detector)
Patent 5221955: Distance measuring apparatus for camera
(OPTICS: MEASURING AND TESTING : RANGE OR REMOTE DISTANCE FINDING : Triangulation ranging to a point with one projected beam :)
Patent 5221956: Lidar device with combined optical sight
(OPTICS: MEASURING AND TESTING : VELOCITY OR VELOCITY/HEIGHT MEASURING : With light detector (e.g., photocell) : Vibrating or oscillating element)
Patent 5221957: Nonuniform holographic filter in a spectroscopic system
(OPTICS: MEASURING AND TESTING : BY DISPERSED LIGHT SPECTROSCOPY : With Raman type light scattering : With particular illumination means)
Patent 5221958: Reflection fluorometer
(OPTICS: MEASURING AND TESTING : BY DISPERSED LIGHT SPECTROSCOPY : With sample excitation (e.g., burning) : By light : Monochromatic (e.g., laser) : Including an alternating reference path)
Patent 5221959: Color discrimination data input apparatus
(OPTICS: MEASURING AND TESTING : BY DISPERSED LIGHT SPECTROSCOPY : Utilizing a spectrometer : Having beam modulation)
Patent 5221960: Opto-electronic detector apparatus
(OPTICS: MEASURING AND TESTING : BY MONITORING OF WEBS OR THREAD : Of containers)
Patent 5221961: Structure of biaxial photometer
(OPTICS: MEASURING AND TESTING : FOR LIGHT TRANSMISSION OR ABSORPTION : For flaws or imperfections)
Patent 5221962: Subliminal device having manual adjustment of perception level of subliminal messages
(TELEVISION : BASIC RECEIVER WITH ADDITIONAL FUNCTION : For display of additional information : Color television)
Patent 5221963: Video camera having a video signal processing apparatus
(TELEVISION : CAMERA, SYSTEM AND DETAIL : Combined image signal generator and general image signal processing : Details of luminance signal formation in color camera : Optical zoom)
Patent 5221964: Electronically expandable modular CCD camera
(TELEVISION : CAMERA, SYSTEM AND DETAIL : Support or housing : Flash or strobe)
Patent 5221965: Image processing apparatus having a switch with different functions in different modes
(TELEVISION SIGNAL PROCESSING FOR DYNAMIC RECORDING OR REPRODUCING : PROCESSING OF TELEVISION SIGNAL FOR DYNAMIC RECORDING OR REPRODUCING : Including television camera : Digital technique)
Patent 5221966: Video signal production from cinefilm originated material
(TELEVISION : FORMAT CONVERSION : Involving both line number and field rate conversion (e.g., PAL to NTSC) : Individual processing of different parts of image frequency band (e.g., sum and difference, high band/low band))
Patent 5221967: Signal quality monitoring system
(TELEVISION : MONITORING, TESTING, OR MEASURING : Setup)
Patent 5221968: Ideographic teletext transmissions
(TELEVISION : NONPICTORIAL DATA PACKET IN TELEVISION FORMAT : Including teletext decoder or display : Frequency change of subcarrier)
Patent 5221969: Apparatus for routing digital video image data
(TELEVISION : IMAGE SIGNAL PROCESSING CIRCUITRY SPECIFIC TO TELEVISION : Switching : Composite color signal)
Patent 5221970: Facsimile system including a card mounting portion
(FACSIMILE AND STATIC PRESENTATION PROCESSING : FACSIMILE : Specific signal processing circuitry : Memory interface : Auxiliary signal controls apparatus at both transmitter and receiver)
Patent 5221971: Area modulation printing apparatus
(FACSIMILE AND STATIC PRESENTATION PROCESSING : STATIC PRESENTATION PROCESSING (E.G., PROCESSING DATA FOR PRINTER, ETC.) : Attribute control : Multi-level image reproduction (e.g., gray level reproduction) :)
Patent 5221972: Memory-equipped facsimile machine
(FACSIMILE AND STATIC PRESENTATION PROCESSING : FACSIMILE : Specific signal processing circuitry : Facsimile control unit : Picture signal thresholding)
Patent 5221973: Method and apparatus for exercising diagnostic functionality in product extensions
(FACSIMILE AND STATIC PRESENTATION PROCESSING : FACSIMILE : Specific signal processing circuitry : Facsimile control unit : Picture signal thresholding)
Patent 5221974: Image reader using two frames each driven by a different motor for adjustment of focus
(FACSIMILE AND STATIC PRESENTATION PROCESSING : FACSIMILE : Picture signal generator : Carrier wave modulation)
Patent 5221975: High resolution scanner
(FACSIMILE AND STATIC PRESENTATION PROCESSING : FACSIMILE : Picture signal generator : Scanning : Picture signal thresholding)
Patent 5221976: Hybrid slow scan resolution conversion
(FACSIMILE AND STATIC PRESENTATION PROCESSING : FACSIMILE : Picture signal generator : Scanning : Scan rate or document movement variation in accordance with data presence : Charge coupled device)
Patent 5221977: Laser radiation protection system
(OPTICAL: SYSTEMS AND ELEMENTS : HOLOGRAPHIC SYSTEM OR ELEMENT : Using a hologram as an optical element : Holograph on curved substrate)
Patent 5221978: Liquid-crystal display device having rotationally symmetrical iso-contrast curves
(LIQUID CRYSTAL CELLS, ELEMENTS AND SYSTEMS : PARTICULAR STRUCTURE : Interconnection of plural cells in series : For compensation of birefringence effects : Of twisted (or chiral) nematic or supertwisted nematic liquid crystal : Varistor)
Patent 5221979: Plasma addressed liquid crystal display and manufacturing method
(LIQUID CRYSTAL CELLS, ELEMENTS AND SYSTEMS : PARTICULAR EXCITATION OF LIQUID CRYSTAL : Plasma excitation : With photoconductive layer (e.g., spatial light modulator(SLMs)))
Patent 5221980: Method for driving ferroelectric liquid crystal light valve of light writing type
(LIQUID CRYSTAL CELLS, ELEMENTS AND SYSTEMS : WITH SPECIFIED NONCHEMICAL CHARACTERISTIC OF LIQUID CRYSTAL MATERIAL : Within smectic phase : Within chiral smectic phase (includes ferroelectric) : Greyscale resulting from liquid crystal property other than solely Smectic A : With detail of terminals to external circuit)
Patent 5221981: Production of liquid crystal device including aligning treatment by rubbing
(LIQUID CRYSTAL CELLS, ELEMENTS AND SYSTEMS : PARTICULAR STRUCTURE : Having significant detail of cell structure only : Particular nonoptical film or layer (e.g., adhesive layer, barrier layer) : Alignment layer : Formed by particular technique (e.g., Langmuir Blodgett, stretching, etc.) : Having structure produced by rubbing under particular rubbing conditions (e.g., particular direction, rubbing force, by using named rubbing material or roller, etc.) : With gate electrode between liquid crystal and semiconductor layer)
Patent 5221982: Polarizing wavelength separator
(LIQUID CRYSTAL CELLS, ELEMENTS AND SYSTEMS : PARTICULAR STRUCTURE : Having significant detail of cell structure only : Reflector : Cholesteric reflector : Conductive mask)
Patent 5221983: Passive photonic loop architecture employing wavelength multiplexing
(OPTICAL COMMUNICATIONS : MULTIPLEX : Broadcast and distribution system : WDM : Hub or central office : Including subscribers : Bidirectional :)
Patent 5221984: Optical data transmission device with parallel channel paths for arrayed optical elements
(OPTICAL COMMUNICATIONS : TRANSMITTER AND RECEIVER SYSTEM : Including compensation : Using delay : Using optical phase conjugation)
Patent 5221985: Optical communication system
(OPTICAL COMMUNICATIONS : OPTICAL COMMUNICATION OVER FREEE SPACE : Transceivers : Including alignment : Feedback control)
Patent 5221986: Scanning image-forming lens system and optical scanner
(OPTICAL: SYSTEMS AND ELEMENTS : DEFLECTION USING A MOVING ELEMENT OR MEDIUM (OFFSETTING OR CHANGING AT LEAST A PORTION OF THE BEAM) : Using a periodically moving element (periodic change of optically reflecting, refracting or diffracting element) : Having particular focusing element to receive scanned light : High distortion lens (e.g., fO lens, etc.) :)
Patent 5221987: FTIR modulator
(OPTICAL: SYSTEMS AND ELEMENTS : DEFLECTION USING A MOVING ELEMENT OR MEDIUM (OFFSETTING OR CHANGING AT LEAST A PORTION OF THE BEAM) : By frustrated total internal reflection : Including reflective type moving element)
Patent 5221988: Pockel cell damping system
(OPTICAL: SYSTEMS AND ELEMENTS : OPTICAL MODULATOR : Light wave temporal modulation (e.g., frequency, amplitude, etc.) : Changing bulk optical parameter : Electro-optic : Modulation of polarized light via modulating input signal : Using reflective or cavity structure :)
Patent 5221989: Longitudinal PLZT spatial light modulator
(OPTICAL: SYSTEMS AND ELEMENTS : OPTICAL MODULATOR : Having particular chemical composition or structure : Electro-optic crystal material : PLZT material : Having multiple electrodes)
Patent 5221990: Wide field of view automotive rear vision optical system
(OPTICAL: SYSTEMS AND ELEMENTS : COMPOUND LENS SYSTEM : Telescope : Transparent slide)
Patent 5221991: Device to secure binoculars to a tripod
(SUPPORTS : STAND : To hold a particular article : Having platform for mounting article directly above stationary stand (e.g., tripod head) : Including detailed mount for article (e.g., camera) : Rotating about a vertical pivot)
Patent 5221992: Door viewer including inner tube encasing object lenses and ocular lens and including a rubberized flexible hood
(OPTICAL: SYSTEMS AND ELEMENTS : EXTENDED SPACING STRUCTURE FOR OPTICAL ELEMENTS : Wide angle (e.g., door peep) : With color filter)
Patent 5221993: Annular optical member
(OPTICAL: SYSTEMS AND ELEMENTS : GLARE OR UNWANTED LIGHT REDUCTION : With reflection)
Patent 5221994: Zoom lens of rear focus type
(OPTICAL: SYSTEMS AND ELEMENTS : LENS : With variable magnification (e.g., zoom type) : With mechanical compensation : Other than first group moves for focusing (internal focus type) : Cylindrical lenslets)
Patent 5221995: Zoom lens system
(OPTICAL: SYSTEMS AND ELEMENTS : LENS : With variable magnification (e.g., zoom type) : With mechanical compensation : Four groups : + - - + Arrangement : Having crossed axes)
Patent 5221996: Zoom lens system having short total length
(OPTICAL: SYSTEMS AND ELEMENTS : LENS : With variable magnification (e.g., zoom type) : With mechanical compensation : Three groups : + - + Arrangement : Having crossed axes)
Patent 5221997: Assembly of precisely adjustable linearly-arranged elements, particularly lenses
(OPTICAL: SYSTEMS AND ELEMENTS : LENS : With variable magnification (e.g., zoom type) : Adjusting mechanism : With macro-type focusing)
Patent 5221998: Joined prism assembly and method and apparatus for manufacturing same
(OPTICAL: SYSTEMS AND ELEMENTS : PRISM (INCLUDING MOUNT) : With support)
Patent 5221999: Automotive display apparatus
(OPTICAL: SYSTEMS AND ELEMENTS : MIRROR : With a transmitting property : Plural reflecting surfaces)
Patent 5222000: Flexible mirror
(OPTICAL: SYSTEMS AND ELEMENTS : MIRROR : Including specified control or retention of the shape of a mirror surface : Membrane mirror in mechanical contact only at its edge : Roof or roof-angle)
Patent 5222001: Signal processing circuit of digital audio tape recorder
(DYNAMIC MAGNETIC INFORMATION STORAGE OR RETRIEVAL : CONVERTING AN ANALOG SIGNAL TO DIGITAL FORM FOR RECORDING; REPRODUCING AND RECONVERTING : Frequency)
Patent 5222002: Semiconductor integrated circuit which performs phase synchronization
(DYNAMIC MAGNETIC INFORMATION STORAGE OR RETRIEVAL : GENERAL PROCESSING OF A DIGITAL SIGNAL : Head amplifier circuit : Intra-cell transition)
Patent 5222003: Optical tape position sensing system for magnetic tape media in computer memory backup devices
(DYNAMIC MAGNETIC INFORMATION STORAGE OR RETRIEVAL : AUTOMATIC CONTROL OF A RECORDER MECHANISM : Controlling the record : Stopping or reversing : Responsive to physical property of record : Photoelectric : By signal derived from transport)
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