Gerd Birrenbach
5Patents
4h-index
3Co-inventors
50Inventor score
Filing activity: Dec 4, 1973 → Nov 8, 2002
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4021364A | Microcapsules in the nanometric range and a method for their production | Emerging Cross-Sectional Technologies | 75 | Expired |
| US5631296A | Drugs containing S(+)-ibuprofen | Human Necessities | 17 | Expired |
| US5401514A | Solid, fast-soluble pharmaceutical preparation containing S-(carboxymethyl)-L-cysteine and/or N-acetylcysteine | Human Necessities | 16 | Expired |
| US5897877A | Oral pharmaceutical preparation containing erythromycin base | Human Necessities | 9 | Expired |
| US6803063B2 | Photostabilization of dibenzoylmethane derivatives | Human Necessities | 1 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.