Issued Patents 1997
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5627151 | Use of vinylpyrrolidone copolymers as detergent additives, novel polymers of vinylpyrrolidone, and preparation thereof | Juergen Detering, Christian Schade, Wolfgang Trieselt | 1997-05-06 |