Issued Patents 1982
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4330541 | Novel corticoid 17-thioacetals, their preparation and use | Klaus Annen, Henry Laurent, Karl Petzoldt, Rudolf Wiechert | 1982-05-18 |
| 4322349 | Process for preparing 6-methylene steroids | Klaus Annen, Henry Laurent, Rudolf Wiechert | 1982-03-30 |