Issued Patents All Time
Showing 25 most recent of 31 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11732092 | Upcycling process for processing silicone wastes | Wilfried Knott, Horst Dudzik | 2023-08-22 |
| 11591448 | Physical reutilization of siliconized sheets | Wilfried Knott, Horst Dudzik | 2023-02-28 |
| 11286366 | Process for recycling silicones | Wilfried Knott, Horst Dudzik | 2022-03-29 |
| 6288129 | Process for preparing acrylic esters and/or methacrylic esters of hydroxy-functional siloxanes and/or polyoxyalkylene-modified siloxanes and their use | Burghard Gruning, Geoffrey Hills, Wolfgang Josten, Stefan Silber, Christian Weitemeyer | 2001-09-11 |
| 6268521 | Process for preparing acrylic esters and/or methacrylic esters of polyoxyalkylenes and the use thereof | Burghard Gruning, Geoffrey Hills, Wolfgang Josten, Stefan Silber, Christian Weitemeyer | 2001-07-31 |
| 5744523 | Use of polyacrylate esters as dispersants | Michael Barkowsky, Jurgen Fock | 1998-04-28 |
| 5665155 | Organofunctional polysiloxanes for modifying the surface of finely divided particles | Werner Hohner | 1997-09-09 |
| 5401871 | Organopolysiloxane polyethers and their use as hydrolysis-resistant wetting agents in aqueous systems | Georg Feldmann-Krane, Werner Hohner, Stefan Silber | 1995-03-28 |
| 5391679 | Method for the synthesis of polyether siloxanes | Georg Burkhart, Andreas Weier, Dietmar Wewers | 1995-02-21 |
| 5387467 | Method for modifying the surface of finely divided particles by the application of organofunctional polysiloxanes | Werner Hohner | 1995-02-07 |
| 5344949 | Method for the synthesis of surface-active anion-cation complexes | Gotz Koerner, Klaus-Dieter Klein | 1994-09-06 |
| 5338485 | Polyacrylate esters with long-chain hydrocarbon and polyoxyalkylene groups and their use as surface active substances | Jurgen Fock, Eberhard Esselborn | 1994-08-16 |
| 5296573 | Polyacrylate ester with long-chain alkoxylated hydrocarbonoxy groups and their use in cosmetics and personal grooming | Eberhard Esselborn, Jurgen Fock, Gotz Koerner | 1994-03-22 |
| 5281478 | Method for modifying the surface of finely divided particles by the application of organofunctional polysiloxanes | Werner Hohner | 1994-01-25 |
| 5281687 | Polysiloxanes with at least one sulfatohexyl group linked by an Si-C bond | Stefan Busch, Peter Lersch, Dietmar Wewers | 1994-01-25 |
| 5246607 | Methylpolysiloxanes with quaternary ammonium groups as corrosion inhibitors for preparations consisting predominantly of water | Werner Hohner | 1993-09-21 |
| 5208311 | Organopolysiloxanes with polyether and ester groups linked to a common spacer group | Andreas Weier, Dietmar Wewers | 1993-05-04 |
| 5189184 | 2-(3'-butenyl)-3,4-dihydro-2H-pyrans, their synthesis and use | Andreas Weier, Christian Weitemeyer, Dietmar Wewers | 1993-02-23 |
| 5133898 | Manufacturing polyacrylate esters with long-chain hydrocarbon and polyoxyalkylene groups | Jurgen Fock, Eberhard Esselborn | 1992-07-28 |
| 5115039 | Polyacrylate esters with quaternary ammonium groups | Jurgen Fock, Eberhard Esselborn | 1992-05-19 |
| 5115040 | Polyacrylate esters with quaternary ammonium groups | Jurgen Fock, Eberhard Esselborn | 1992-05-19 |
| 5057579 | Polyacrylate esters with quaternary ammonium groups | Jurgen Fock, Eberhard Esselborn | 1991-10-15 |
| 5057580 | Polyacrylate esters with quaternary ammonium groups | Jurgen Fock, Eberhard Esselborn | 1991-10-15 |
| 5004559 | Polyoxyalkylene-polysiloxane block copolymers as demulsifiers for water-containing oil | Gotz Koerner | 1991-04-02 |
| 4931362 | Microcapsule and micromatrix bodies and method for their formation | Wilhelm Zsifkovits, Burghard Gruning, Hans-Joachim Kollmeier, Christian Weitemeyer | 1990-06-05 |