Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7893124 | Method for producing rigid polyurethane foams | Andreas Emge, Holger Seifert, Johann Klassen, Christian Stelling | 2011-02-22 |
| 6753402 | Polyester-polyether block copolymers | Stephan Bauer, Georg Heinrich Grosch, Gerlinde Tischer, Kathrin Harre, Eva Baum +5 more | 2004-06-22 |
| 6563007 | Preparation of polyetherols | Jurgen Winkler, Gottfried Knorr, Michael Reichelt, Gerd Hoppner, Peter von Malotki | 2003-05-13 |
| 6245947 | Treatment for polyether polyols | Bernd Guettes, Gerd Hoeppner, Monika Wetterling, Heinz Auer, Jens Bruhn +1 more | 2001-06-12 |
| 6100308 | Preparation of polyurethanes having improved curing | Bernd Guettes, Gottfried Knorr, Holger Seifert | 2000-08-08 |
| 5925687 | Production of flexible polyurethane foams | Bernd Guettes, Karl-Heinz Steinchen, Gerd Hoeppner, Klaus Wagner, Harald Larbig +1 more | 1999-07-20 |
| 5895824 | Preparation of polyether polyols containing aromatics | Regina Pretzsch, Juergen Winkler, Bernd Guettes, Karl-Heinz Steinchen | 1999-04-20 |