Issued Patents 1997
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5658993 | Water-soluble or water-dispersible graft copolymers, the preparation thereof and the use thereof | Walter Denzinger, Johannes Perner, Angelika Funhoff, Birgit Potthoff-Karl, Hans-Jurgen Raubenheimer | 1997-08-19 |