Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5700351 | Antifoams based on oil-in-water emulsions for the paper industry | Rudolf Schuhmacher, Gabriele Dralle-Voss, Brigitte Wegner, Andreas Hohmann | 1997-12-23 |
| 5677384 | Grafted polyamidoamines and grafted polyethyleneimines, preparation thereof, and use thereof as detergent additives | Juergen Detering, Christian Schade, Michael Zirnstein, Guenter Scherr, Wolfgang Trieselt +1 more | 1997-10-14 |