Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10100132 | Process for the preparation of polymers containing amino groups employing a heterogeneous iron catalyst | Johannes Kaulen, Werner Obrecht, Rommy Schneider, Christoph Larcher, Leonid Modestovich Kustov +3 more | 2018-10-16 |
| 6080890 | Production of aromatic amines by means of novel hydrogenation catalysts | Reinhard Langer, Hans-Josef Buysch, Manfred Gallus | 2000-06-27 |
| 5760247 | Process for the preparation of carbazole | Albert Schnatterer, Helmut Fiege, Eberhard Zirngiebl | 1998-06-02 |
| 5663443 | Ruthenium catalysts, their preparation and a process for preparing cycloaliphatic polyamines using these catalysts | Wolfgang Kiel, Eberhard Zirngiebl | 1997-09-02 |
| 5616730 | Process for preparing succinic anhydride | Georg Martin, Eberhard Zirngiebl | 1997-04-01 |
| 5593936 | Hydrated niobium oxide and hydrated tantalum oxide catalysts, their preparation and a process for preparing N-alkylated anilines using these catalysts | Volker Glock, Ursula Pentling, Bernd Pennemann, Eberhard Zirngiebl, Horst Koller | 1997-01-14 |
| 5498744 | Process for the preparation of dimethyl carbonate | Alexander Klausener, Heinz Landscheidt, Bernd Lenders, Bernd Pennemann, Erich Wolters +1 more | 1996-03-12 |
| 5414104 | Process for preparing dialkyl carbonates | Alexander Klausener, Heinz Landscheidt, Erich Wolters, Eberhard Zirngiebl | 1995-05-09 |