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 | Gabriele Dralle-Voss, Knut Oppenlaender, Brigitte Wegner, Andreas Hohmann | 1997-12-23 |
| 5630907 | Use of hydrolyzed copolymers of N-vinylcarboxamides and monoethylenically unsaturated carboxylic acids in papermaking | Claudia Nilz, Walter Denzinger, Heinrich Hartmann, Michael Kroener, Friedrich Linhart +2 more | 1997-05-20 |