Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7323454 | Etonogestrel esters | Henrik de Nijs, Dirk Leysen, Arij Jan Grootenhuis | 2008-01-29 |
| 6989378 | Testosterone derivative | Dirk Leysen | 2006-01-24 |
| 5620966 | 11,21-bisphenyl-19-norpregnane derivatives | Ronald Gebhard | 1997-04-15 |