Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5008471 | Process for the preparation of rooperol | Karl H. Pegel, Siegfried Drews, Hans Kundig | 1991-04-16 |
| 4956502 | Process for the preparation of rooperol derivative | Karl H. Regel, Siegfried Drews, Hans Kundig | 1990-09-11 |