Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5658993 | Water-soluble or water-dispersible graft copolymers, the preparation thereof and the use thereof | Walter Denzinger, Axel Kistenmacher, Angelika Funhoff, Birgit Potthoff-Karl, Hans-Jurgen Raubenheimer | 1997-08-19 |
| 5656646 | Mixtures of polymers of monoethylenically unsaturated dicarboxylic acids and polymers of ethylenically unsaturated monocarboxylic acids and/or polyaminocarboxylic acids and their use | Paul Diessel, Helmut Guembel, Walter Denzinger, Heinrich Hartmann, Matthias Kroner | 1997-08-12 |