Issued Patents 1997
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5665693 | Use of carboxyl-containing reaction products of proteins or protein hydrolyzates in detergents and cleaners | Gunnar Schornick, Richard Baur, Alexander Kud, Volker Schwendemann | 1997-09-09 |
| 5656646 | Mixtures of polymers of monoethylenically unsaturated dicarboxylic acids and polymers of ethylenically unsaturated monocarboxylic acids and/or polyaminocarboxylic acids and their use | Johannes Perner, Paul Diessel, Helmut Guembel, Walter Denzinger, Heinrich Hartmann | 1997-08-12 |
| 5639723 | Reaction products of polybasic carboxylic acids and amino-containing compounds, their preparation and their use in detergents and cleaning agents | Heinrich Hartmann, Dieter Boeckh, Richard Baur, Alexander Kud, Volker Schwendemann | 1997-06-17 |
| 5639832 | Preparation of products of the reaction of polyaspartimide and amino acids and the use thereof | Gunnar Schornick, Dieter Boeckh, Richard Baur, Birgit Potthoff-Karl, Volker Schwendemann +2 more | 1997-06-17 |