Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6870024 | Polymeric urea-urethane rheology control agents and a process for their preparation | Karlheinz Haubennestel, Stefan Moessmer, Sascha Huebers, Baerbel Gertzen | 2005-03-22 |
| 4857111 | Thixotropic formulations, use of polycarboxylic acid amides to produce them, and silica coated with polycarboxylic acid amides | Karl-Heinz Haubennestel, Andreas Diez | 1989-08-15 |