Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4888398 | Biodegradable polypeptide and the use thereof for the gradual release of drugs | Daniel Bichon | 1989-12-19 |
| 4824578 | Method of purifying bioactive substances by biospecific adsorption | Michel Schneider, Christian Guillot | 1989-04-25 |