Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5869588 | Polymeric compounds derived from 2-hydroxy-phenyl-s-triazines substituted with ethylenically unsaturated moieties | Vien Van Toan, David G. Leppard, Gerhard Rytz, Pascal Hayoz | 1999-02-09 |
| 5753729 | Coating compositions stabilized against damage by light, heat, and oxygen | Andreas Valet, Jean-Luc Birbaum, Gerhard Rytz | 1998-05-19 |
| 5672704 | 2-Hydroxyphenyl-s-Triazines substituted with ethylenically unsaturated moieties | Vien Van Toan, David G. Leppard, Gerhard Rytz, Pascal Hayoz | 1997-09-30 |
| 5538840 | Photographic recording material containing a UV absorber | Vien Van Toan, David G. Leppard, Gerhard Rytz, Pascal Hayoz | 1996-07-23 |