Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6593468 | Essentially fiber-free cellulose ether with improved water retention, method for the production and use thereof | Werner Lange, Bernd Schriewer, Friedrich-Karl Lampert, Jorn-Bernd Pannek, Rene Kiesewetter | 2003-07-15 |
| 6485665 | Method for producing polyurethane elastomer fibers and fibers produced according to this method | Frank Hermanutz, Peter Hirt, Oliver Oess | 2002-11-26 |
| 6458866 | Polyurethane elastomers, method of producing them and their use | Frank Hermanutz, Peter Hirt, Michael Schweizer, Oliver Oess | 2002-10-01 |
| 4451649 | Process for the production of hydroxypropyl starch | Helwig Teubner | 1984-05-29 |
| 4438264 | Process for the production of hydroxyethyl methyl cellulose | Klaus Balser, Helwig Tuebner | 1984-03-20 |