Friedhelm Adam
5Patents
2h-index
9Co-inventors
33Inventor score
Filing activity: Jul 13, 1990 → Nov 19, 1992
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5100887A | Cephalosporin derivatives | Chemistry; Metallurgy | 10 | Expired |
| US5409918A | Crystalline cephem acid addition salts and process for their preparation | Human Necessities | 4 | Expired |
| US5306717A | Cephalosporin derivatives | Human Necessities | 1 | Expired |
| US5091382A | Cephalosporin derivatives | Chemistry; Metallurgy | 1 | Expired |
| USRE34865E | Cephalosporin derivatives | General | 0 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.