Issued Patents All Time
Showing 1–21 of 21 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6730749 | Siloxane block copolymers having linked siloxane blocks | Georg Burkhart, Andreas Weier | 2004-05-04 |
| 6414175 | Innovative siloxane block copolymers with rigid spacers and their use | Georg Burkhart, Andreas Weier | 2002-07-02 |
| 6297331 | Organosiloxanyl derivatives of alkanediol monovinyl ethers, process for their preparation, their modification and their use as paint additives | Georg Feldmann-Krane, Wolfgang Josten, Gerhard Reusmann, Stefan Silber, Werner Spratte +1 more | 2001-10-02 |
| 6117963 | Tetrahydrofuran-containing silicone polyethers | Tammo Boinowitz, Georg Burkhart, Andreas Weier | 2000-09-12 |
| 5990187 | Method of preparing polyurethane foam utilizing organofunctionally modified polysiloxanes | Tammo Boinowitz, Georg Burkhart, Ingo Schlachter, Andreas Weier | 1999-11-23 |
| 5985948 | Use of silicone polyether copolymers in the production of high-resilience polyurethane foams | Georg Burkhart, Bernd-Jurgen Klietsch, Andreas Weier | 1999-11-16 |
| 5844010 | Method of preparing polyurethane foam utilizing block copolymers having linked siloxane blocks | Georg Burkhart, Andreas Weier | 1998-12-01 |
| 5565194 | Polysiloxane-polyoxyalkylene block copolymers and their use as additives for hair cosmetics | Georg Burkhart, Andreas Weir, Volker Zellmer | 1996-10-15 |
| 5357018 | Polysiloxane-polyoxyalkylene block copolymers with different polyoxyalkylene blocks in the average molecule | Georg Burkhart, Andreas Weier, Volker Zellmer | 1994-10-18 |
| 5321051 | Polysiloxane-polyoxyalkylene block copolymers with different polyoxyalkylene blocks in the average molecule | Georg Burkhart, Andreas Weier, Volker Zellmer | 1994-06-14 |
| 5306737 | Polysiloxane-polyoxyalkylene block copolymers with different polyoxyalkylene blocks in the average molecule | Georg Burkhart, Andreas Weier, Volker Zellmer | 1994-04-26 |
| 5130344 | Use of polysiloxane polyoxyalkylene block copolymers for the preparation of rigid polyurethane foams | Hans-Joachim Kollmeier, Helmut Schator, Christian Weitemeyer | 1992-07-14 |
| 5064870 | Method for the production of highly elastic, cold-curing polyurethane foams | Hans-Joachim Kollmeier, Georg Burkhart, Helmut Lammerting, Bernd-Jurgen Klietsch | 1991-11-12 |
| 5043409 | Release agent and process for the preparation of molded polyurethane or polyurea articles in the presence of the release agent | Helmut Lammerting, Hans-Joachim Kollmeier | 1991-08-27 |
| 4698178 | Use of polyoxyalkylene-polysiloxane copolymers with silicon-linked, long-chain alkyl radicals as emulsifiers for the preparation of water/oil emulsions | Rudolf Huttinger, Hans-Joachim Kollmeier, Alfred Walter, Wilhelm Wolfes | 1987-10-06 |
| 4687786 | Process for the preparation of flexible polyurethane foams | Hans-Joachim Kollmeier | 1987-08-18 |
| 4654161 | Siloxanes with betaine groups, their synthesis and use in cosmetic preparations | Hans-Joachim Kollmeier, Klaus Hoffmann | 1987-03-31 |
| 4609750 | Siloxanes with betaine groups, their synthesis and use in hair care products | Hans-Joachim Kollmeier, Klaus Hoffmann | 1986-09-02 |
| 4529743 | Process for the production of rigid polyurethane foams | Hans-Joachim Kollmeier | 1985-07-16 |
| 4478957 | Process for the production of highly resilient, cold-curing polyurethane foams | Bernd-Juergen Klietsch, Hans-Joachim Kollmeier, Helmut Lammerting | 1984-10-23 |
| 4417068 | Process for the addition of organic silicon compounds with SiH groups to compounds with olefinic double bonds | Hans-Joachim Kollmeier | 1983-11-22 |