Issued Patents All Time
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6465382 | Process for producing spherical catalyst particles, catalyst particles and their use in a chemical synthesis | Michel Strebelle, Helmut Derleth | 2002-10-15 |
| 6300468 | Process for producing porous polymer globules | Heinz-Helmer Rasche, Helmut Derleth, Philippe Francois | 2001-10-09 |
| 5736118 | Method of producing spherical particles | Helmut Derleth | 1998-04-07 |
| 5676845 | Process for catalytic treatment of effluents containing organic and inorganic compounds, preferably from epichlorohydrin production | Helmut Derleth, Gerhard Neuenfeldt, Hubert Schindler, Alfred Ottmann | 1997-10-14 |
| 5518979 | Abrasion-resistant catalyst carrier formed of transition aluminas | Dirk Bonse, Helmut Derleth, Michael Sell | 1996-05-21 |
| 5507956 | Abrasion-resistant carrier catalyst | Dirk Bonse, Helmut Derleth, Michael Sell, Michael Bischoff | 1996-04-16 |
| 5468558 | Process for preparing fracture-resistant sol/gel particles | Helmut Derleth | 1995-11-21 |
| 5421860 | Sorption of organic compounds from fluids | Kristen Fuhrmann, Michael Hoffmeister, Peter Engelmann, Andreas Meyer-Anderson, Egon Schultz +3 more | 1995-06-06 |
| 4601992 | Product and process for the production of granules of high mechanical strength and containing molecular sieve | Helmut Derleth, Guenther Sauer | 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 | Helmut Derleth, Gunther Sauer | 1982-07-27 |