Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5401854 | Process for the production of indole derivatives | Gregor Haffer, Wolfgang Kubler, Klaus Nickisch | 1995-03-28 |
| 5386028 | Process for the production of N-.beta.-hydroxyalkyl-tri-N-carboxyalkyl-1,4,7,10-tetraazacyclododecane and N-.beta.-hydroxyalkyl-tri-N-carboxyalkyl-1,4,8,11-tetraazacyclotetradeca ne derivatives and their metal complexes | Ulf Tilstam, Klaus Nickisch, Heinz Gries, Johannes Platzek | 1995-01-31 |
| 5329009 | Selective phenylation of 5-hydroxy-.beta.-carboline derivatives | Gregor Haffer, Klaus Nickisch, Julius Deutsch | 1994-07-12 |
| 4970314 | Process for the preparation of 2-bromo-8-ergolinyl compounds | Gregor Haffer, Gerhard Sauer | 1990-11-13 |
| 4644062 | Process for the production of .beta.-carbolines by dehydrogenation | Gregor Haffer, Andreas Huth | 1987-02-17 |