Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8197699 | Process for preparing methylhydroxyalkylcellulose having a small number of coloured particles | Martin Kowollik, Wolfgang Dannhorn, Hartwig Schlesiger, Bernhard Kranz, Helmut Holste +1 more | 2012-06-12 |
| 7683110 | Preparation of cellulose ether products of increased viscosity and fineness | Hartwig Schlesiger, Roland Bayer, Daniel Auriel, Jurgen Engelhardt, Frank Hohl +3 more | 2010-03-23 |
| 7402668 | Process of preparing alkylhydroxyalkylcellulose | Wolfgang Dannhorn, Martin Kowollik, Hartwig Schlesiger, Jorn-Bernd Pannek | 2008-07-22 |
| 6958393 | Cellulose derivatives having gel-like rheological properties and process for the preparation thereof | Hartwig Schlesiger, Arne Kull | 2005-10-25 |
| 6939960 | Cellulose ethers | Jörg Neubauer, Wolfgang Koch, Klaus Szablikowski, Detmar Redeker, Wolfgang Wagenknecht +1 more | 2005-09-06 |
| 6852852 | Method of producing regioselectively substituted esters of oligo- and polysaccharides | Wolfgang Koch, Dieter Klemm, René Dicke | 2005-02-08 |
| 6489468 | Regioselectively substituted esters of oligo- and polysaccharides and a method of producing them | Wolfgang Koch, Dieter Klemm, René Dicke | 2002-12-03 |
| 6482940 | Cellulose ethers and method for producing the same | Jörg Neubauer, Wolfgang Koch, Klaus Szablikowski, Detmar Redeker, Wolfgang Wagenknecht +1 more | 2002-11-19 |