Helmut Schmidhammer
8Patents
5h-index
12Co-inventors
60Inventor score
Filing activity: Jul 16, 1981 → Mar 30, 2016
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5886001A | Agonist compounds | Human Necessities | 58 | Expired |
| US6136817A | Opioid receptor antagonist compounds | Human Necessities | 14 | Expired |
| US7655671B2 | Morphinan derivatives, the quaternary ammonium salts thereof substituted in position 14, method for production and use thereof | Chemistry; Metallurgy | 13 | Active |
| US7538118B2 | 6-aminomorphinane derivatives, method for production and use thereof | Human Necessities | 10 | Expired |
| US4390699A | 6-Keto-morphinans belonging to the 14-hydroxy-series | Chemistry; Metallurgy | 7 | Expired |
| US4388463A | 6-Keto-morphinan analgesics | Chemistry; Metallurgy | 5 | Expired |
| US5994327A | Process for the preparation of morphinans | Chemistry; Metallurgy | 4 | Expired |
| US10377698B2 | Diphenethylamine derivatives which are inter alia useful as analgesics and method for their production | Chemistry; Metallurgy | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.