Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4877792 | Heteroaryloxy-beta-carboline derivatives, their preparation and their use as medicinal agents | Andreas Huth, Dieter Rahtz, Ralph Schmiechen, Dieter Seidelmann, David N. Stephens +2 more | 1989-10-31 |
| 4855295 | Tetrahydro-beta-carbolines, and their use as drugs | Mogens Engelstoft, Andreas Huth, Dieter Rahtz, Ralph Schmiechen, Dieter Seidelmann +1 more | 1989-08-08 |
| 4801714 | Process for the preparation of ergolinylthioureas | Gregor Haffer | 1989-01-31 |