Did You Know...
...that the inventor of the electric motor was a blacksmith named Thomas Davenport? Described as "a brilliantly unsuccessful inventor", Davenport invented the first rotary electric motor. In 1836 he headed out -- on foot -- from his Vermont home to file a patent application at the Patent Office in Washington, D.C. By the time he got there, he had squandered away his money and couldn't afford the $30 filing fee so he turned around and went home. When he later mailed in his application with money he'd raised, the Patent office was destroyed in a fire. He did finally get credit for his invention on Feb. 5, 1837.
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| Number | Title | Issue Date |
| 5552081 | Dicyclooctylhaloboranes A novel class of enolboration reagents represented by the formula R2 BX/R'3 N wherein each R is the same or different alkyl or cycloalkyl, B is boron, X is halo, R' is lower alkyl and/indicates that R2 BX is preferably employed... | 09/03/1996 |
| 5543569 | Borane-N,N-dialkylaniline hydroboration agents Borane-N,N-dialkylanilines represented by the formula H3 B. C6 H5 NRR' wherein N is nitrogen, R is isobutyl or isopropyl and R' is straight or branched chain lower alkyl. The compounds are useful as hydroboration agents and for... | 08/06/1996 |
| 5504240 | Borane-hydroxydialkylsulfide borates Novel borane adducts of hydroxydialkylsulfide borate esters represented by formula ##STR1## wherein R is straight or branched chain alkyl or alkoxy having from 2 to 5 carbon atoms and n is 1 to 3 inclusive. The compound are new hydroboration age... | 04/02/1996 |
| 5481038 | Borane-N,N-diisopropylalkylamine hydroboration agents Borane-N,N-diisopropylalkylamines as represented by the formula: H3 B.NPri2 R wherein Pri is isopropyl, R is branched-chain alkyl or cycloalkyl having 3 to 6 carbon atoms and B is boron are provided. The compounds are ... | 01/02/1996 |
| 5409371 | Oxygen welding and incorporating a novel gas separation system An oxygen welding apparatus capable of generating its oxygen needs without an external oxygen source from a self-contained solid state electrolytic cell which separates oxygen from the air. The cell employs a flexible, ductile ceramic composite as the sol... | 04/25/1995 |
| 5380940 | Bis(bicyclo(2.2.2)octyl)haloboranes A novel class of enolboration reagents represented by the formula R2 BX/R'3 N wherein each R is the same or different alkyl or cycloalkyl, B is boron, X is halo, R' is lower alkyl and / indicates that R2 BX is preferably employ... | 01/10/1995 |
| 5332483 | Gas separation system A solid state electrolytic cell for separating oxygen or nitrogen from the air which employs a flexible, ductile ceramic composite as the solid electrolyte is provided. The ductile ceramic composite solid electrolyte comprises a continuous, ordered, repea... | 07/26/1994 |
| 5284976 | Method of producing primary amines in high yields A novel process for producing hindered and unhindered primary amines represented by the formula RNH2 and R*NH2 in high yields from novel intermediates RBMe2 or R*BMe2 wherein R is an organo group, R* is a chiral... | 02/08/1994 |
| 5202502 | Process for producing optically active alcohols A chemically and optically pure B-halodiiso-2-ethylapopinocampheylborane of essentially 100% ee represented by the formula: ##STR1## wherein B is borane and X is halo, and a process of using such for the production of optically active alcohols.... | 04/13/1993 |
| 5159116 | Chemically and optically pure B-halodiiso-2-ethylapopinocampheylboranes A chemically and optically pure B-halodiiso-2-ethylapopinocampheylborane of essentially 100% ee represented by ##STR1## wherein B is borane and X is halo.... | 10/27/1992 |
| 5069987 | Solid oxide fuel cell assembly There is provided a solid oxide fuel cell comprising a solid state electrolytic cell wherein the solid electrolyte is a ductile composite comprising an ordered, repeating array of ductile intersupported continuous fibers substantially surrounding a cerami... | 12/03/1991 |
| 5022975 | Solid state electrochemical pollution control device A solid state electrochemical cell adapted to alter the composition of gas streams passing therethrough comprising: a porous, high surface area electrolyte forming the body of the cell, said electrolyte having darkened electrocatalytic surfaces; a gas com... | 06/11/1991 |
| 4978794 | Novel ଲ-(2-alkenyl)bis(2-isocaranyl)boranes 2-Alkenylbis(2-isocaranyl)boranes represented by the formula: ##STR1## wherein R is 2-alkenyl. The compounds undergo asymmetric 2-alkenylboration with a variety of aldehydes and afford the corresponding alcohols in 94-99% ee.... | 12/18/1990 |
| 4918242 | Novel optically 1,3-phenoxypropylhalides A process for producing the optically pure (+)- or (-)-isomer of a phenyl- or substituted-phenylalkanolamine compounds having pharmacologic activity without the need for resolution processes and novel intermediates useful in the process including opticall... | 04/17/1990 |
| 4918229 | Method of producing primary amines in high yields and novel intermediates therefor A novel process for producing hindered and unhindered primary amines represented by the formula RNH2 and R*NH2 in high yields from novel intermediates RBMe2 or R*BMBe2 wherein R is an organo group, R* is a chira... | 04/17/1990 |
| 4918207 | Novel optically active halo-substituted tetrahydrofurans A process for producing the optically pure (+)- or (-) isomer of a pheynl- or substituted- phenylalkanolamine compounds having pharmacologic activity without the need for resolution processes and novel intermediates useful in the process including optical... | 04/17/1990 |
| 4918246 | Process for preparing optically active haloalcohols A process for producing the optically pure (+)- or (-) isomer of a phenyl- or substituted- phenylalkanolamine compounds having pharmacologic activity without the need for resolution processes and novel intermediates useful in the process including optical... | 04/17/1990 |
| 4866181 | Process for producing optically active alcohols A process for preparing optically active alcohols by reducing ketones using mono- or diisopinocampheylhaloboranes as reducing agents.... | 09/12/1989 |
| 4713380 | Production of optically pure organoboranes A process for upgrading to essentially 100% enantiomeric excess the optical purity of an organoborane intermediate represented by the formulae: or wherein Icp is isopinocampheyl and R* is a unsubstituted or substituted, acyclic or cyclic alkyl having from 4 to... | 12/15/1987 |
| 4687781 | Analgesic and anti-inflammatory compositions Analgesic and anti-inflammatory compositions are provided which comprise a therapeutically effective amount of a hydrocinnamic acid alone, or in combination with one or more amino acids selected from the group consisting of D-phenylalanine, DL-phenylalani... | 08/18/1987 |
| 4684666 | Stabilized liquid analgesic compositions A stabilized liquid ibuprofen syrup suitable for oral administration comprising: from 50 to 400 mg of ibuprofen per 5 ml of syrup; said ibuprofen suspended in an aqueous liquid having more than 50% by weight of a pharmaceutically acceptable polyhydric alc... | 08/04/1987 |
| 4674744 | Batting practice assembly A batting practice assembly is provided to consistently position a baseball at a desired height in a strike zone. The batting practice assembly has a swinging control mechanism with laterally opposed pivot arms which pivotally hang from a collapsible and ... | 06/23/1987 |
| 4661509 | Methods for treating leukopenia A method of improving the levels of formed blood elements in a patient having disease or therapy induced leukopenia comprising administering to said patient a therapeutically effective amount of a pharmaceutically acceptable, water or lipid soluble tertia... | 04/28/1987 |
| 4659448 | Solid state electrochemical pollution control device A solid state electrochemical ceramic cell adapted to alter the composition of gas exhaust streams containing noxious component passing therethrough comprising: a porous, high surface area body having a gas-receiving first end seal portion, a gas egressin... | 04/21/1987 |
| 4656960 | Sailboat tiller extension hiking stick A sailboat steering assembly is provided which has a hiking stick that assumes fixed positions in use, but smoothly responds to any changes induced by manual manipulation of the helmsman. Typical swinging and flopping of the unattended hiking stick are el... | 04/14/1987 |
| 4612996 | Robotic agricultural system with tractor supported on tracks A robotic tractor that travels on rails forming a grid over a crop field and automatically performs tasks in the field is described. The tractor is supported on extendable legs that carry dual tandem perpendicular wheel sets. A rotary implement bed suppor... | 09/23/1986 |
| 4601896 | Pharmaceutical capsule compositions and structures for gastric sensitive materials This invention provides oral dosage forms of therapeutic agents such as digestive enzymes which are subject to degradation and loss of activity at gastric pH. and compositions and methods for preparing same. Capsules of their components are formulated fro... | 07/22/1986 |
| 4584791 | Soiless agricultural system and components therefore A soilless agricultural system and components therefore including a hydroponic assembly comprising support means for defining a crop field, nutrient solution circulating system and a plant tray assembly having a seedling or plant tray cooperating with a s... | 04/29/1986 |
| 4579843 | Analgesic and anti-inflammatory compositions Analgesic and anti-inflammatory compositions are provided which comprise a therapeutically effective amount of a first agent selected from the group consisting of D-phenylalanine, DL-phenylalnine, D-leucine, and DL-leucine and synergistically effective am... | 04/01/1986 |
| 4527544 | High insulating solar block structures A light-transmissive solar insulating block assembly comprising: light-transmissive insulating block means defining at least one internal cavity for insulating the interior of a structure to be heated; a housing having a light-transmissive cover providing... | 07/09/1985 |
| 4525345 | Constant order release, solid dosage indomethacin formulation and method of treating arthritis and other inflammatory conditions A constant release rate indomethacin formulation in tablet unit dosage form, said tablet comprising an intimate admixture of from 50 to 200 mg of indomethacin, from about 1.7 to 3.7 weight percent of a slow-dissolving, water-insoluble cellulose derivative... | 06/25/1985 |
| 4522804 | Constant release rate solid oral dosage formulations of propranolol A constant order release rate solid oral dosage formulation of propranolol or a pharmaceutically acceptable salt thereof, said formulation comprising: a therapeutically effective amount of propranolol or a pharmaceutically acceptable salt; from about 0.5 ... | 06/11/1985 |
| 4521401 | Constant release rate solid oral dosage formulations of quinidine A constant order release rate solid oral dosage formulation of quinidine or a pharmaceutically acceptable salt thereof, said formulation comprising: a therapeutically effective amount of quinidine or a pharmaceutically acceptable salt; from about 0.5 to 6... | 06/04/1985 |
| 4521402 | Constant release rate solid oral dosage formulations of hydrazine A constant order release rate solid oral dosage formulation of hydralazine or a pharmaceutically acceptable salt thereof, said formulation comprising: a therapeutically effective amount of hydralazine or a pharmaceutically acceptable salt; from about 0.5 ... | 06/04/1985 |
| 4520009 | Sustained released aspirin formulation A constant release aspirin tablet comprising from 85-95 weight percent of aspirin, from 1.5-5 weight percent of microcrystalline cellulose, from 1-10 weight percent of cellulose acetate phthalate, from 0.75-4 weight percent of a plasticizer, from 0.75-5 w... | 05/28/1985 |
| 4502417 | Dog drip unit The present invention provides a pet dropping collection device comprising a body encircling friction locking clamp attachable and fixable to the rib-to-loin area of a dog, and having a pair of bushings horizontally mounted on the collar adapted to slidab... | 03/05/1985 |
