...When G.G. Hubbard learned of his future son-in-law's invention, he called it "only a toy." His daughter was engaged to a young man named Alexander Graham Bell.
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 |
| 3957805 | Substituted pyridines and diazines and methods of preparing the same The preparation of cyclopropylisoxazolylpyridines and cyclopropylisoxazolyldiazines from corresponding cyclopropyl monooximes is described. The products are useful in the treatment of pain, muscle spasm, inflammation, anxiety, or tension.... | 05/18/1976 |
| 3957990 | Oxime carbamates Novel oxime-carbamates of the formula ##SPC1## Wherein R1 is --CH3, --CH(CH3)2, ##EQU1## --C(CH3)3, or --C6 H5 ; R2 is --H or --CH3 ; R3 | 05/18/1976 |
| 3950333 | Pharmacologically active guanidine compounds The compounds are substituted thioalkyl-, aminoalkyl- and oxyalkyl-guanidines which are inhibitors of histamine activity.... | 04/13/1976 |
| 3950353 | Pharmacologically active thiourea and urea compounds The compounds are substituted thioalkyl-, aminoalkyl- and oxyalkyl-thioureas and ureas which are inhibitors of histamine activity.... | 04/13/1976 |
| 3948892 | 2-Alkoxy(and 2-amino)-3-amino-2-heterocyclic-thiopropanamides The compounds are 2-alkoxy(and 2-amino)-3-amino-2-heterocyclic-thiopropanamides, for example 2-methoxy-N-methyl-3-morpholino-2-(2-pyridyl)thiopropanamide, which are inhibitors of gastric acid secretion.... | 04/06/1976 |
| 3948895 | Synthesis of 3,5-diaminopyrazinoic acid from 3,5-diamino-2,6-dicyanopyrazine and intermediates An improved method for the preparation of 3,5-diaminopyrazinoic acid (which is useful for the manufacture of diuretics) is described. New compounds obtained in the process include 3,5-diamino-2,6-dicarbamoylpyrazine; 3.5-diamino-6-carbamoylpyrazinoic acid... | 04/06/1976 |
| 3946009 | 2-(3-Substituted amino-2-hydroxypropoxy)-3-substituted pyrazines 2-(3-Substituted amino-2-hydroxypropoxy)-3-substituted pyrazine compounds optionally having substituents in the 5 and/or 6 positions, possessing ଲ-adrenergic blocking properties are described. The products are prepared by reaction of a 2-chloro(or h... | 03/23/1976 |
| 3944551 | N-Coumaranyl and chromanyl -methyl-or sulfur analogs thereof-N'- thiazolyl piperazines Disubstituted piperazines of the formula: ##SPC1## Wherein: n is 1 or 2; X is oxygen or sulfur; R is hydrogen or lower alkyl; Het is pyridyl, pyrimidinyl, pyridazinyl, pyrazinyl, quinolyl, quinazolyl, thiazolyl or benzothiazolyl, each optionally substituted by... | 03/16/1976 |
| 3940486 | Imidazole derivatives in the treatment of pain Compounds of the formula ##SPC1## Wherein R1 represents lower alkyl, cycloalkyl or phenyl which is optionally substituted by halogen, lower alkyl or lower alkoxy, and one of the groups R2 and R3 represents phenyl which is ... | 02/24/1976 |
| 3932443 | Sulphoxides The compounds are sulphoxides of heterocyclicthioalkylthioureas, ureas and guanidines which are useful to produce inhibition of histamine H-2 receptors.... | 01/13/1976 |