Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4820821 | Novel pyridazinone-imines and their physiologically tolerated addition salts with acids, their preparation and therapeutic agents containing these compounds | Rudolf Kropp, Marco Thyes, Rainer Schlecker, Albrecht Franke, Franz Reicheneder +5 more | 1989-04-11 |
| 4798811 | Combination preparation | Hans D. Lehmann, Klaus Hahn | 1989-01-17 |