Udo Hahn
5Patents
5h-index
9Co-inventors
48Inventor score
Filing activity: May 10, 1994 → Apr 23, 2002
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6254887A | Controlled release tramadol | Human Necessities | 166 | Expired |
| US5591452A | Controlled release formulation | Human Necessities | 151 | Expired |
| US6326027A | Controlled release formulation | Human Necessities | 151 | Expired |
| US7074430B2 | Controlled release tramadol tramadol formulation | Human Necessities | 69 | Expired |
| US6806294B2 | Opioid analgesic | Human Necessities | 27 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.