Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4696914 | Material for improving the fertility of mammals and process for its production | Meinhard W. Russe, Friedhelm Koch | 1987-09-29 |
| 4518801 | Process for the hydrolysis of 5-(.beta.-methylmercaptoethyl)-hydantoin | Friedhelm Geiger, Manfred Spindler, Herbert Tanner | 1985-05-21 |