Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5973108 | Unsaturated polycations and their preparation and use | Oliver Eyrisch | 1999-10-26 |
| 5292942 | Process for the preparation of aqueous betaine solutions | Rudolf Aigner, Rainer Muller, Hubert Seitz | 1994-03-08 |