Issued Patents All Time
Showing 1–21 of 21 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6803342 | Catalytic composition and process for the oxychlorination of ethylene using such a composition | Deniz Adem, Michel Strebelle | 2004-10-12 |
| 6465382 | Process for producing spherical catalyst particles, catalyst particles and their use in a chemical synthesis | Michel Strebelle, Karl-Heinz Bretz | 2002-10-15 |
| 6300468 | Process for producing porous polymer globules | Karl-Heinz Bretz, Heinz-Helmer Rasche, Philippe Francois | 2001-10-09 |
| 6074980 | Process for the preparation of a support for catalysts, catalyst for the polymerization of olefins and process for the polymerization of olefins by means of this catalyst | Benoit Koch, Andre Rulmont, Fabienne Wijzen | 2000-06-13 |
| 5834572 | Process for the preparation of a support for catalysts, catalyst for the polymerization of olefins and process for the polymerization of olefins by means of this catalyst | Benoit Koch, Andre Rulmont, Fabienne Wijzen | 1998-11-10 |
| 5736118 | Method of producing spherical particles | Karl-Heinz Bretz | 1998-04-07 |
| 5726260 | Process for the production of a microspheroidal powder of low dispersity, microspheroidal powder of low dispersity thus obtained, catalysts for the polymerization of alpha-olefins and process for the polymerization of alpha-olefins | Abel Grosjean | 1998-03-10 |
| 5716898 | Process for the production of a microspheroidal powder of low dispersity, microspheroidal powder of low dispersity thus obtained, catalysts for the polymerization of alpha-olefins and process for the polymerization of alpha-olefins | Abel Grosjean | 1998-02-10 |
| 5676845 | Process for catalytic treatment of effluents containing organic and inorganic compounds, preferably from epichlorohydrin production | Karl-Heinz Bretz, Gerhard Neuenfeldt, Hubert Schindler, Alfred Ottmann | 1997-10-14 |
| 5527754 | Catalytic composition and process for the oxychlorination of ethylene using such a composition | Deniz Adem, Michel Strebelle | 1996-06-18 |
| 5518979 | Abrasion-resistant catalyst carrier formed of transition aluminas | Dirk Bonse, Karl-Heinz Bretz, Michael Sell | 1996-05-21 |
| 5507956 | Abrasion-resistant carrier catalyst | Dirk Bonse, Karl-Heinz Bretz, Michael Sell, Michael Bischoff | 1996-04-16 |
| 5468558 | Process for preparing fracture-resistant sol/gel particles | Karl-Heinz Bretz | 1995-11-21 |
| 5421860 | Sorption of organic compounds from fluids | Karl-Heinz Bretz, Kristen Fuhrmann, Michael Hoffmeister, Peter Engelmann, Andreas Meyer-Anderson +3 more | 1995-06-06 |
| 5315051 | Process for the oxychlorination of ethylene and catalyst compositions for the oxychlorination | Robert J. Walter, Gunter Weidenbach, Michel Strebelle | 1994-05-24 |
| 5296564 | Process for the polymerization of alpha-olefins | Abel Grosjean | 1994-03-22 |
| 5232883 | Process for obtaining monodisperse microspheroidal particles, microspheroidal silica particles of high specific surface, and catalysts supported on these particles | Abel Grosjean | 1993-08-03 |
| 4910354 | Process for the oxychlorination of ethylene and catalyst compositions for the oxychlorination | Robert J. Walter, Gunter Weidenbach, Michel Strebelle | 1990-03-20 |
| 4601992 | Product and process for the production of granules of high mechanical strength and containing molecular sieve | Guenther Sauer, Karl-Heinz Bretz | 1986-07-22 |
| 4341663 | Process for the production of spherical shaped bodies based on Al.sub.2 O.sub.3 and optionally SiO.sub.2 | Karl-Heinz Bretz, Gunther Sauer | 1982-07-27 |
| 4248847 | Process for preparing a substantially crystalline sodium aluminosilicate | Ludwig Walter, Karl-Heinrich Bretz, Artur Kurs | 1981-02-03 |