Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7344588 | Anti-skinning agents having a mixture of organic compounds and coating compositions containing them | Andreas Steinert | 2008-03-18 |
| 6916876 | Powdered thickener preparations based on polyurethane and their use for thickening aqueous systems | Frank Sauer, Thomas Steinhoff, Jan Mazanek, Christian Wamprecht, Christel Spinger +2 more | 2005-07-12 |
| 6730157 | Anti-skinning agents having a mixture of organic compounds and coating compositions containing them | Andreas Steinert | 2004-05-04 |
| 6642302 | Polyurethanes and their use for the thickening of aqueous systems | Christian Wamprecht, Jan Mazanek, Frank Sauer | 2003-11-04 |