Issued Patents 1989
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4873246 | 6-(acylaminoaryl)-3(2H)-pyridazinone derivatives, and their use | Philip A. Rossy, Albrecht Franke, Horst Koenig, Hans D. Lehmann, Josef Gries +2 more | 1989-10-10 |
| 4857658 | Preparation of (Z)-2-(2-arylethenyl)arylcarboxylic acids | Gerd Steiner | 1989-08-15 |
| 4845302 | Preparation of 5H-dibenzo[a,d]cyclohepten-5-ones | Gerd Steiner | 1989-07-04 |
| 4820821 | Novel pyridazinone-imines and their physiologically tolerated addition salts with acids, their preparation and therapeutic agents containing these compounds | Rudolf Kropp, Rainer Schlecker, Albrecht Franke, Franz Reicheneder, Dora I. Reicheneder +5 more | 1989-04-11 |
| 4804785 | Alpha, beta-substituted acroleins | Bernd Janssen, Stefan Karbach, Hans-Gert Recker | 1989-02-14 |