Meier E. Freed
34Patents
8h-index
4Co-inventors
64Inventor score
Filing activity: Nov 5, 1971 → Mar 7, 1986
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4320057A | Aryl--pyrrolo--thiazepin--diones and aryl--piperidino--thiazepin--diones | Chemistry; Metallurgy | 26 | Expired |
| US4562255A | Substituted bi-alicyclic imides | Chemistry; Metallurgy | 22 | Expired |
| US4032639A | 2,3,4,4A-Tetrahydro-1H-pyrazino[1,2-a,]quinoxalin-5(6H)-ones and derivatives thereof for relieving hypertension | Human Necessities | 18 | Expired |
| US4089958A | 2,3,4,4A-Tetrahydro-1H-pyrazino[1,2]quinoxalin-5(6)-ones and derivatives thereof | Chemistry; Metallurgy | 16 | Expired |
| US4251444A | Thiazepino-[4,3-b]-isoquinoline-1,5-dione derivatives and precursors | Chemistry; Metallurgy | 14 | Expired |
| US4446323A | Tetra- and hexa-hydropyrrolo(1,2-a)quinoxaline and azaquinoxaline derivatives | Chemistry; Metallurgy | 11 | Expired |
| US4001331A | Benzobicycloalkane | Chemistry; Metallurgy | 9 | Expired |
| US4138564A | Tetrahydro[1H]pyrazino[1,2-a]azaquinoxalin-5(6H)-ones and derivatives thereof | Chemistry; Metallurgy | 9 | Expired |
| US4034041A | 1,3-Bridged amino tetralins | Chemistry; Metallurgy | 6 | Expired |
| US4339579A | 2,6-Bis-(pyrrolopyrazinyl)pyrazines | Chemistry; Metallurgy | 6 | Expired |
| US3976696A | Benzobicycloalkane amines | Chemistry; Metallurgy | 6 | Expired |
| US4290952A | Aryl-1-mercaptoalkanoylproline and homoproline derivatives | Chemistry; Metallurgy | 5 | Expired |
| US4203987A | 3-[Pyridinylalkyl and piperidinylalkyl]-2,3,4,4a-tetrahydro-1H-pyrazino[1,2-a]quinoxalin-5(6H) -ones | Chemistry; Metallurgy | 5 | Expired |
| US4719211A | 2,3,4,9-tetrahydro-2-heteroarylalkyl-1H-pyrido(3,4-B)indoles having antihypertensive properties | Chemistry; Metallurgy | 5 | Expired |
| US4022778A | 10-Aryl-1,2,3,4-tetrahydropyrazino(1,2-.alpha.)indole and derivatives thereof | Chemistry; Metallurgy | 5 | Expired |
| US4483991A | Hypotensive agents | Chemistry; Metallurgy | 5 | Expired |
| US3931328A | Benzobicycloalkane ketones | Chemistry; Metallurgy | 4 | Expired |
| US4076953A | 1,3-Bridged amino tetralins | Chemistry; Metallurgy | 4 | Expired |
| US3979434A | Benzobicycloalkane amines | General | 4 | Expired |
| US4400511A | 2-Substituted octahydropyrrolo(1,2-A)-pyrazine-3-carboxylic acids | Chemistry; Metallurgy | 3 | Expired |
| US4414389A | 4-Substituted-piperidino carboxamides | Chemistry; Metallurgy | 3 | Expired |
| US3937736A | Benzobicycloalkane amines | Chemistry; Metallurgy | 3 | Expired |
| US4049701A | Benzobicycloalkane amines | Chemistry; Metallurgy | 2 | Expired |
| US3957872A | Benzobicycloalkane amine N-oxides and the salts thereof | Chemistry; Metallurgy | 2 | Expired |
| US4540806A | Benzocycloalkane amines | Human Necessities | 2 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.