Issued Patents All Time
Showing 1–13 of 13 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8598385 | Process for the preparation of N-vinylcarboxamides | Hagen Weigl, Andreas Kramer | 2013-12-03 |
| 8575267 | Process for hydrolyzing polymers containing vinylcarboxamide units | Hagen Weigl, Hans-Joachim Haehnle, Andreas Kramer | 2013-11-05 |
| 8349090 | Process for removing carbonaceous deposits on surfaces of catalysts and plant parts | Hagen Weigl, Andreas Kramer | 2013-01-08 |
| 7888524 | Process for preparing sulfuric monoesters from amino alkanols | Jacques Dupuis, Reinhard W. Hoffmann, Ekhard Winkler | 2011-02-15 |
| 7683216 | Continuous process for the preparation of alkyleneimines | Thomas Knebel, Gerd Saas, Wolfgang Schreieck, Horst Schroeder | 2010-03-23 |
| 7078569 | Method for producing alkylketen dimers | Roland Ettl, Torsten Freund, Thomas Kessler, Guenther Grimm | 2006-07-18 |
| 6524541 | Catalyst structures | — | 2003-02-25 |
| 6114435 | Preparation of aqueous solutions of polymers containing vinylamine units, which solutions have a long shelf life, and their use | Claudia Nilz, Michael Kroner, Andreas Stange, Rudolf Schuhmacher | 2000-09-05 |
| 6033530 | Continuous distillation of thermolabile monomers | Jacques Dupuis | 2000-03-07 |
| 5951828 | Continuous distillation of thermolabile monomers | Jacques Dupuis, Michael Kroner | 1999-09-14 |
| 4842856 | Parenteral solution | Wolfgang Hoederath, Hans J. Ahr, Klaus Buhner, Ahmed Hegasy | 1989-06-27 |
| 4724141 | Preparation of solid medicament formulation containing nitrendipine | Wolfgang Schmidt, Bernhard Streuff | 1988-02-09 |
| 4693892 | Gelatin containing .beta.-carotene | Ahmed Hegasy | 1987-09-15 |