Issued Patents All Time
Showing 1–16 of 16 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8569401 | Storing and distributing a feeder product | Meinolf Brackhagen, Marco Grossstueck, Martin Kowollik, Jan Zillmann | 2013-10-29 |
| 8197699 | Process for preparing methylhydroxyalkylcellulose having a small number of coloured particles | Martin Kowollik, Wolfgang Dannhorn, Erik-Andreas Klohr, Bernhard Kranz, Helmut Holste +1 more | 2012-06-12 |
| 8138331 | Water-dispersible polysaccharide derivatives of reduced glyoxal content, and a process for decreasing the glyoxal content in glyoxal-crosslinked polysaccharide derivatives | Meinolf Brackhagen | 2012-03-20 |
| 7683110 | Preparation of cellulose ether products of increased viscosity and fineness | Roland Bayer, Daniel Auriel, Jurgen Engelhardt, Frank Hohl, Erik-Andreas Klohr +3 more | 2010-03-23 |
| 7491755 | Cellulose ether composition for the extrusion of mineral shaped bodies and also a process for the extrusion of mineral shaped bodies using this cellulose ether composition | Roland Bayer, Frank Hohl, Arne Kull, Jorn-Bernd Pannek, Jurgen Engelhardt +1 more | 2009-02-17 |
| 7402668 | Process of preparing alkylhydroxyalkylcellulose | Wolfgang Dannhorn, Erik-Andreas Klohr, Martin Kowollik, Jorn-Bernd Pannek | 2008-07-22 |
| 7371279 | Cellulose ether composition | Roland Bayer, Daniel Auriel | 2008-05-13 |
| 7259257 | Process for producing particulate, water-soluble cellulose derivatives using a superheated gas mixture containing steam | Martin Morning, Gunter Weber, Volker Eckhardt, Gerd Sonnenberg, Rene Kiesewetter | 2007-08-21 |
| 7041168 | Process for cement extrusion that makes use of crosslinked cellulose additives | Roland Bayer, Frank Hohl, Arne Kull, Jurgen Engelhardt, Burkhard Kressdorf +1 more | 2006-05-09 |
| 7012139 | Process of preparing delayed-dissolution cellulose ethers | Wolfgang Dannhorn, Jorn-Bernd Pannek, Volkhardt Müller, Frank Hohl | 2006-03-14 |
| 6958393 | Cellulose derivatives having gel-like rheological properties and process for the preparation thereof | Arne Kull, Erik-Andreas Klohr | 2005-10-25 |
| 6943247 | Building material compositions | Rene Kiesewetter, Martin Morning, Gunter Weber, Werner Lange | 2005-09-13 |
| 6939961 | Method for the production of low-viscous water soluble cellulose ethers | — | 2005-09-06 |
| 6891034 | Process for preparing alkylhydroxyalkyl cellulose | Wolfgang Dannhorn, Jorn-Bernd Pannek, Gerolf Weissach | 2005-05-10 |
| 6880772 | Process and apparatus for combined milling and drying | Martin Morning, Gerd Sonnenberg, Rudolf Heidemann | 2005-04-19 |
| 6509461 | Process for producing particulate, water-soluble cellulose derivatives | Martin Morning, Gunter Weber, Rene Kiesewetter, Rudolf Lelgemann | 2003-01-21 |