Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| RE39221 | Composition comprising a tramadol material and acetaminophen and its use | Robert B. Raffa | 2006-08-01 |
| 5468744 | Composition comprising a tramadol material and any of codeine, oxycodone or hydrocodone and their use | Robert B. Raffa | 1995-11-21 |
| 5336691 | Composition comprising a tramadol material and acetaminophen and its use | Robert B. Raffa | 1994-08-09 |