Issued Patents All Time
Showing 1–25 of 27 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7612158 | Equilibration of siloxanes | Juergen Droese, Horst Dudzik, Klaus-Dieter Klein, Wilfried Knott, Volker Moehring | 2009-11-03 |
| 7196153 | Equilibration of siloxanes | Jurgen Drose, Horst Dudzik, Klaus-Dieter Klein, Wilfried Knott, Volker Mohring | 2007-03-27 |
| 6829287 | Electrode connection with coated contact surfaces | Stefan Baumann, Norbert Richter | 2004-12-07 |
| 6824862 | Fiber-reinforced ceramic composite | Moritz Bauer, Martin Christ, Ronald Huener, Andreas Kienzle, Peter Winkelmann +1 more | 2004-11-30 |
| 6730749 | Siloxane block copolymers having linked siloxane blocks | Rolf-Dieter Langenhagen, Andreas Weier | 2004-05-04 |
| 6617365 | Use of silicon-polyether copolymers in the production of high resilience polyurethane foams | Georg Feldmann-Krane, Ingo Fleute-Schlachter, Andreas Weier | 2003-09-09 |
| 6414175 | Innovative siloxane block copolymers with rigid spacers and their use | Rolf-Dieter Langenhagen, Andreas Weier | 2002-07-02 |
| 6194475 | Use of metal salts of ricinoleic acid in producing polyurethane | Tammo Boinowitz, Ralf Hoffmann, Felix Muller, Hans-Heinrich Schlons, Andreas Weier +2 more | 2001-02-27 |
| 6166098 | Use of organofunctionally modified polysiloxanes in the production of polyurethane foam | Andreas Weier | 2000-12-26 |
| 6117963 | Tetrahydrofuran-containing silicone polyethers | Tammo Boinowitz, Rolf-Dieter Langenhagen, Andreas Weier | 2000-09-12 |
| 5990187 | Method of preparing polyurethane foam utilizing organofunctionally modified polysiloxanes | Tammo Boinowitz, Rolf-Dieter Langenhagen, Ingo Schlachter, Andreas Weier | 1999-11-23 |
| 5985948 | Use of silicone polyether copolymers in the production of high-resilience polyurethane foams | Bernd-Jurgen Klietsch, Rolf-Dieter Langenhagen, Andreas Weier | 1999-11-16 |
| 5844010 | Method of preparing polyurethane foam utilizing block copolymers having linked siloxane blocks | Rolf-Dieter Langenhagen, Andreas Weier | 1998-12-01 |
| 5633292 | Method for producing cold polyurethane foams | Anette Brune, Volker Zellmer | 1997-05-27 |
| 5614566 | Method for the preparation of rigid foams having urethane and/or isocyanurate groups and being extensively open celled | Helmut Schator | 1997-03-25 |
| 5565194 | Polysiloxane-polyoxyalkylene block copolymers and their use as additives for hair cosmetics | Rolf-Dieter Langenhagen, Andreas Weir, Volker Zellmer | 1996-10-15 |
| 5480916 | Method for producing cold polyurethane foams | Anette Brune-Fischer, Bernd-Jurgen Klietsch, Volker Zellmer | 1996-01-02 |
| 5391679 | Method for the synthesis of polyether siloxanes | Dietmar Schaefer, Andreas Weier, Dietmar Wewers | 1995-02-21 |
| 5357018 | Polysiloxane-polyoxyalkylene block copolymers with different polyoxyalkylene blocks in the average molecule | Rolf-Dieter Langenhagen, Andreas Weier, Volker Zellmer | 1994-10-18 |
| 5321051 | Polysiloxane-polyoxyalkylene block copolymers with different polyoxyalkylene blocks in the average molecule | Rolf-Dieter Langenhagen, Andreas Weier, Volker Zellmer | 1994-06-14 |
| 5306737 | Polysiloxane-polyoxyalkylene block copolymers with different polyoxyalkylene blocks in the average molecule | Rolf-Dieter Langenhagen, Andreas Weier, Volker Zellmer | 1994-04-26 |
| 5132333 | Method for the preparation of flexible polyurethane foams with reduced hardness comprising adding a hydroxycarboxylic acid salt | Hans-Heinrich Schlons, Volker Zellmer | 1992-07-21 |
| 5093376 | Method for the preparation of flexible polyester polyurethane foams | Volker Mohring, Volker Zellmer, Jurgen Fock, Hans-Heinrich Schlons | 1992-03-03 |
| 5082868 | Method for the preparation of polyurethane foams | Jurgen Fock, Volker Mohring | 1992-01-21 |
| 5079270 | Method for the preparation of molded polyurethane and polyurea articles | Hans-Joachim Kollmeier, Helmut Lammerting | 1992-01-07 |