Issued Patents 1994
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5280124 | 5-sulfonyl-substituted benzotriazole UV-absorbers | Roland A. E. Winter, Tyler A. Stevenson, Mark S. Holt, Ramanathan Ravichandran | 1994-01-18 |
| 5278314 | 5-thio-substituted benzotriazole UV-absorbers | Roland A. E. Winter, Tyler A. Stevenson, Mark S. Holt, Ramanathan Ravichandran | 1994-01-11 |