Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4801590 | Pyrido(1,8)naphthyridinones, and their use as pharmaceuticals | Erich Cohnen, Thomas Beuttler, Wolfgang Stenzel | 1989-01-31 |
| 4631281 | Substituted phenylpiperazinyl-propanols, a process for their preparation and their use, and formulations containing these compounds | Wolfgang Stenzel | 1986-12-23 |
| 4318915 | Substituted guandines and methods of preparation thereof | Erich Cohnen, Ben Armah | 1982-03-09 |