Issued Patents 1997
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5672704 | 2-Hydroxyphenyl-s-Triazines substituted with ethylenically unsaturated moieties | Vien Van Toan, David G. Leppard, Norbert Wurms, Pascal Hayoz | 1997-09-30 |
| 5668200 | Stabilizer combination | Andreas Valet, Pascal Hayoz | 1997-09-16 |
| 5597854 | Latent light stabilizers | Jean-Luc Birbaum, Vien Van Toan, Andreas Valet, Norbert W urms | 1997-01-28 |