Issued Patents 1997
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5683861 | Benzotriazole-based UV absorbers and photographic elements containing them | Glenn M. Brown | 1997-11-04 |
| 5674670 | 2-hydroxyphenyl benzotriazole based UV absorbing polymers with particular substituents and photographic elements containing them | Hwei-Ling Yau, Tienteh Chen | 1997-10-07 |
| 5675015 | Process for the preparation of benzotriazole derivatives | Victor LaVonne Mylroie, Louis F. Valente, Barry F. Briffa | 1997-10-07 |
| 5670654 | Method of synthesizing 2-(2'-hydroxyphenyl) benzotriazole compounds | — | 1997-09-23 |
| 5610000 | 2'-hydroxyphenyl benzotriazole based UV absorbing polymers and photographic elements containing them | Hwei-Ling Yau, Tienteh Chen | 1997-03-11 |