Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4870069 | 11.beta.-alkynyl-estrenes and -estradienes, their production and pharmaceutical preparations containing them | Eckhard Ottow, Rudolf Wiechert, Guenter Neef, Sybille Beier, Walter Elger +1 more | 1989-09-26 |