Issued Patents 1994
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5373037 | Coupled benzotriazole and benzophenone UV absorbers | William E. Leistner | 1994-12-13 |
| 5362881 | Coupled benzotriazole and benzophenone UV absorbers | William E. Leistner | 1994-11-08 |
| 5360850 | Asymmetrical benzotriazolylphenols | William E. Leistner | 1994-11-01 |
| 5292890 | Asymmetrical benzotriazolylphenols | William E. Leistner | 1994-03-08 |