...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.
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 4439443 | Snake bite therapy A method of reducing local hemorrhage and tissue necrosis resulting from the bite or sting of a venomous animal whereby an envenomated mammal is treated with a compound of the formula ##STR1## or a corresponding disulfide wherein n is 1, 2 or 3; Z is... | 03/27/1984 |
| 4347255 | Snake bite therapy A method of reducing local hemorrhage and tissue necrosis resulting from the bite or sting of a venomous animal whereby an envenomated mammal is treated with a compound of the formula: ##STR1## or a corresponding disulfide wherein n is 1, 2 or 3; Z i... | 08/31/1982 |
| 4341698 | Enkaphalin derivatives Novel analgesic and antipsychotic agents having the formula ##STR1## wherein Q is ##STR2## in which R1 is hydrogen, hydroxy or halogen and R4 is hydrogen or, R1 and R4 are both hydroxy; Z is hydrogen o... | 07/27/1982 |
| 4325877 | Production of intermediates for enzyme inhibitors 5-Amino-4-oxo-pentanoic acids of the formula ##STR1## wherein R is CF3, CHF2 or CH2 F; R1 is H or akyl of 1-4 carbon atoms; and R2 is H or alkyl or 1-4 carbon atoms or benzyl, which are intermedi... | 04/20/1982 |
| 4321382 | 2-Amino-11b-aryl-benzo[a]quinolizines Compounds of the formula ##STR1## wherein R1 is hydrogen, a straight or branched chain alkyl of 1-5 carbon atoms or a straight or branched chain alkanoyl of 1-5 carbon atoms; R2 is hydrogen, a straight or branched chain alkyl of 1-5 ... | 03/23/1982 |
| 4317817 | Novel steroid 5-reductase inhibitors Compounds of the following general formula are testosterone 5-reductase inhibitors rendering the compounds useful in the treatment of acne and oily skin and benign prostatic hypertrophy: ##STR1## wherein R is: .dbd.O, --OH, --OCO--alkyl C... | 03/02/1982 |
| 4317818 | Method of treating prostatic carcinoma Compounds of the following general formula are useful in treating prostatic carcinoma: ##STR1## wherein R is --CHO or --CH2 OR1 ; each of R1 and R2 is hydrogen, alkylcarbonyl wherein the alkyl moiety has fr... | 03/02/1982 |
| 4312879 | Clonidine and lofexidine as antidiarrheal agents Clonidine and lofexidine and the pharmaceutically acceptable salts thereof, which are, inter alia, known antihypertensives, also possess very potent antidiarrheal activity which is non-narcotic and more potent than that of conventional antidiarrheal drugs... | 01/26/1982 |
| 4309426 | Muscle-relaxant 1,3,4-thiadiazin-2-amines A method of achieving a muscle-relaxing effect in a patient comprises administering to a patient in which a muscle relaxing effect is desired an amount effective to achieve a muscle-relaxing effect of a compound of the formula ##STR1## wherein R... | 01/05/1982 |
| 4302581 | 7-(1,3-Dithiolan-2-imino)cephalosporanic acid derivatives Novel 7-(1,3-dithiolan-2-imino)cephalosporin derivatives are described which are particularly useful for their antibacterial properties.... | 11/24/1981 |
| 4291160 | 7-(1,3-Dithiolan-2-imino)-Ɗ2 -cephalosporanic acid derivatives Novel 7-(1,3-dithiolan-2-imino)-Ɗ2 -cephalosporanic acid derivatives are described which possess useful antibacterial properties.... | 09/22/1981 |
| 4289767 | 5-(Chlorophenyl)-6H-1,3,4-thiadiazine-2-amines Compounds of the formula ##STR1## wherein R is H, C1-5 or 7 -straight or branched chain alkyl or allyl and R1 is H or Cl and the pharmacologically acceptable acid addition salts thereof are pharmacologically active as anticonvul... | 09/15/1981 |
| 4285957 | 1-Piperidine-alkanol derivatives, pharmaceutical compositions thereof, and method of use thereof Novel compounds of the following formula: ##STR1## wherein R1 is hydrogen or hydroxy; R2 is hydrogen; or R1 and R2 taken together form a second bond between the carbon atoms bearing R1 and R... | 08/25/1981 |
| 4285958 | 1-Piperidine-alkylene ketones, pharmaceutical compositions thereof and method of use thereof Pharmaceutically useful compounds of the following formula: ##STR1## wherein R1 represents hydrogen or hydroxy; R2 represents hydrogen; or R1 and R2 taken together form a second bond between the carbon atom... | 08/25/1981 |
| 4284636 | Cinnamoylpiperidinobutyrophenone antipsychotic agents Cinnamoylpiperidinobutyrophenone derivatives and pharmaceutically acceptable salts thereof of the following general structure: ##STR1## wherein R is hydrogen, alkyl, alkoxy, halogen or trifluoromethyl; and R' is hydrogen or halogen; are useful as ant... | 08/18/1981 |
| 4283404 | Aroylethenylpiperidinobutyrophenone antipsychotic agents 4-Aroylethnyl-1-piperidinobutyrophenone derivatives and pharmaceutically acceptable salts thereof of the following general structure: ##STR1## wherein R is hydrogen, alkyl, alkoxy, halogen or trifluoromethyl; and R' is hydrogen or halogen, are useful... | 08/11/1981 |
| 4283385 | Dentifrices with improved soluble fluoride availability Dentifrice preparations having improved soluble fluoride availability are obtained by incorporation of ethylenediamine tetraacetic acid and sodium salts thereof.... | 08/11/1981 |
| 4280936 | Denture adhesive of sodium carboxymethylcellulose, poly(ethylene oxide) homopolymer and mineral oil An improved denture adhesive contains a particular amount of a specified ratio of sodium carboxymethylcellulose and poly(ethylene oxide) in a mineral oil base.... | 07/28/1981 |
| 4277395 | Novel enzyme inhibitors Compounds of the following general formula are irreversible inhibitors of pancreatic elastase: ##STR1## wherein M is hydroxy, lower alkoxy, benzyloxy or --NY1 Y2 wherein each of R4 and R5 is hydrogen or low... | 07/07/1981 |
| 4272532 | 5-(Optionally substituted phenyl)-6H-1,3,4-thiadiazine-2-amines A method of inducing sedation in a patient comprises administering to a patient in which sedation is desired an amount effective for inducing sedation of a compound of the formula ##STR1## wherein R is H, or C1-5 or 7 -straight or branched... | 06/09/1981 |
| 4260626 | Tetrahydro and imidazoline antisecretory compounds Novel antisecretory compounds of the formula: ##STR1## wherein R is ##STR2## and pharmaceutically acceptable salts, diasteriomers and individual optical isomers thereof.... | 04/07/1981 |
| 4255575 | 2-Hydroxy-5-(1-hydroxy-2-piperazinylethyl)-benzoic acid derivatives Derivatives of 2-hydroxy-5-(1-hydroxy-2-piperazinylethyl)benzoic acid are prepared which are useful for their blocking action on and ଲ-adrenergic receptors. In addition, these compounds are useful as spasmolytic and antihypertensive agents.... | 03/10/1981 |
| 4254130 | Piperidine derivatives Pharmaceutically useful compounds of the following formula: ##STR1## wherein R1 represents hydrogen or hydroxy; R2 represents hydrogen; or R1 and R2 taken together form a second bond between the carbon atom... | 03/03/1981 |
| 4254129 | Piperidine derivatives Novel compounds of the following formula: ##STR1## wherein R1 is hydrogen or hydroxy; R2 is hydrogen; or R1 and R2 taken together form a second bond between the carbon atoms bearing R1 and R... | 03/03/1981 |
| 4246268 | Neuroleptic-4-(naphthylmethyl)piperidine derivatives Novel compounds of the formula ##STR1## wherein n is an integer of from 2 to 5, R is hydrogen, alkyl, alkoxy, halogen or trifluoromethyl, R1 is hydrogen, alkyl, alkoxy or halogen, X is carbonyl, hydroxymethylene or methylene, and Z is carb... | 01/20/1981 |
| 4244955 | 2,4a-Ethanobenz[g]isoquinolin-5(1H)-ones and their use as anti-fertility and analgesic agents 2,4a-Ethanobenz[g]isoquinolin-5(1H)-one derivatives are described which are useful as analgesic and anti-fertility agents.... | 01/13/1981 |
| 4239681 | Androst-4-en-19-ols Derivatives of androst-4-en-19-ol are useful for enhancing libido and related psychic attitudes.... | 12/16/1980 |
| 4230715 | 1,2,4-Triazole-3-thiols as antisecretory agents Compounds of the formula ##STR1## wherein R1 is H or NH2 ; R2 is C1-6 straight or branched chain alkyl; --CH2 OH; --(CH2)n --O--(CH2)m --CH3 ; ph... | 10/28/1980 |
| 4229467 | Alkoxy benzofuran carboxylic acids and salts and esters thereof as hypolipidemic agents Compounds of the Formula ##STR1## wherein R is H or C1-4 alkyl; R1 is H or C1-4 alkyl; and R2 is straight or branched chain alkyl of 10-20 carbon atoms, straight or branched chain alkenyl of 10-20 carbon at... | 10/21/1980 |
| 4229575 | 7-(2,3-Dihydrobenzo-5-furanyl)-acetamido cephalosporin derivatives This invention is directed to new 7-(2,3-dihydrobenzo-5-furanyl)acetamido cephalosporin derivatives and methods for preparing them.... | 10/21/1980 |
| 4221808 | Novel antihypertensive agent This invention is to the compound 5-[2-[[3-(1,3-benzodioxol-5-yl)-1-methylpropyl]amino]-1-hydroxyethyl]-2-me thoxybenzamide having the formula, ##STR1## pharmaceutically acceptable salts and individual optical isomers thereof, pharmaceutical comp... | 09/09/1980 |
| 4219648 | 7-[[Amino(1,3-dihydrobenzo[c]thienyl)acetyl]amino]cephalosporin derivatives This invention is directed to new 7-[[amino(1,3-dihydrobenzo[c]thien-5-yl)acetyl]amino]cephalosporin derivatives useful as antibiotics.... | 08/26/1980 |
| 4215130 | Antihypertensive compositions of N-(2,6-dichlorophenyl)-4,5-dihydro-1H-imidazol-2-amine and N-(2-chloroethyl)-N-(1-methyl-2-phenoxyethyl)-benzenemethanamine Therapeutic antihypertensive compositions containing N-(2,6-dichlorophenyl)-4,5-dihydro-1H-imidazol-2-amine and N-(2-chloroethyl)-N-(1-methyl-2-phenoxyethyl)benzenemethanamine or their non-toxic, pharmaceutically acceptable salts are described as well as ... | 07/29/1980 |
| 4208516 | 7-(1,3-Dithiolan-2-imino)-Ɗ2 -cephalosporanic acid derivatives Novel 7-(1,3-dithiolan-2-imino)-Ɗ2 -cephalosporanic acid derivatives are described which possess useful antibacterial properties.... | 06/17/1980 |
| 4206119 | 6-(1,3-Dithiolan-2-imino)penicillanic acid derivatives Novel 6-(1,3-dithiolan-2-imino)penicillanic acid derivatives are described which are particularly useful for their antibacterial properties.... | 06/03/1980 |
| 4206125 | 5-[2-[(2,3-Dihydro-1,4-benzodioxan-2-ylmethyl)amino]-1-hydrox yethyl]-2-hydroxybenzoic acid derivatives Derivatives of 5-[2-[(2,3-dihydro-1,4-benzodioxan-2-ylmethyl)amino]-1-hydroxyethyl]-2-hyd roxybenzoic acid are prepared which are useful for their blocking action on and ଲ-adrenergic receptors. In addition, these compounds are useful as ... | 06/03/1980 |
| 4206305 | 7-(1,3-Dithiolan-2-imino)cephalosporanic acid derivatives Novel 7-(1,3-dithiolan-2-imino)cephalosporin derivatives are described which are particularly useful for their antibacterial properties.... | 06/03/1980 |
| 4200755 | 2-Hydro xy-5-[1-hydroxy-2-[4-(2-oxo-1-benzimidazolinyl)piperidino]ethyl]benzoic acid derivatives Derivatives of 2-hydroxy-5-[1-hydroxy-2-[4-(2-oxo-1-benzimidazolinyl)piperidino]ethyl]ben zoic acid are prepared which are useful for their blocking action on and ଲ-adrenergic receptors. In addition, these compounds are useful for their ... | 04/29/1980 |
| 4192895 | Antirhinovirus agents Compounds of the following general structure are useful as antirhinovirus agents: ##STR1## wherein Y is a bond, oxygen or divalent sulfur; R is a straight or branched hydrocarbon chain having from 6 to 20 carbon atoms and is saturated or unsatur... | 03/11/1980 |
| 4191828 | Process for preparing 2-(2,2-dicyclohexylethyl)piperidine 2-(2,2-Dicyclohexylethyl)piperidine is prepared via the catalytic hydrogenation of 2-(2,2-diphenylethenyl)pyridine in a single step. High yields are obtained using a rhodium supported catalyst.... | 03/04/1980 |