Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6268465 | Hydrolysis-resistant aliphatic polyester amides, their production and use | Gudrun Chomiakow, Emil Wilding | 2001-07-31 |
| 5925722 | Amphoteric and anionic polymer dispersions, process for their preparation and use thereof | Reiner Exner, Karl Hetterich | 1999-07-20 |
| 5169886 | Paper sizing agents containing cationic dispersants | Josef Bung, Bernd Schutzius | 1992-12-08 |
| 5116924 | Paper sizing agents containing cationic dispersants | Josef Bung, Bernd Schutzius | 1992-05-26 |
| 4632730 | Method for increasing the absorption rate of paper | Horst Schurmann | 1986-12-30 |
| 4586982 | Process for the de-inking of printed waste paper | Gunter Poppel | 1986-05-06 |