Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5672704 | 2-Hydroxyphenyl-s-Triazines substituted with ethylenically unsaturated moieties | Vien Van Toan, David G. Leppard, Gerhard Rytz, Norbert Wurms | 1997-09-30 |
| 5668200 | Stabilizer combination | Andreas Valet, Gerhard Rytz | 1997-09-16 |