Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4868166 | 2,2:6,6-diethylen-3-oxo-17alpha-pregn-4-ene-21,17alpha-carbolactones, process for their production & pharmaceutical preparations containing them | Klaus Nickisch, Henry Laurent, Rudolf Wiechert, Martin Haberey | 1989-09-19 |
| 4859659 | Dermatics utilizing 17.beta.methyl-18 nor steroids and methods for their use | Henry Laurent, Klaus Nickisch, Petra Rach | 1989-08-22 |