Issued Patents 1997
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5677384 | Grafted polyamidoamines and grafted polyethyleneimines, preparation thereof, and use thereof as detergent additives | Christian Schade, Knut Oppenlaender, Michael Zirnstein, Guenter Scherr, Wolfgang Trieselt +1 more | 1997-10-14 |
| 5627151 | Use of vinylpyrrolidone copolymers as detergent additives, novel polymers of vinylpyrrolidone, and preparation thereof | Christian Schade, Wolfgang Trieselt, Juergen Tropsch | 1997-05-06 |
| 5622926 | Vinylpyrrolidone and vinylimidazole copolymers, their preparation and their use in detergents | Christian Schade, Wolfgang Trieselt | 1997-04-22 |