Issued Patents 2003
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6545156 | Oligomeric hindered amine light stabilizers based on multi-functional carbonyl compounds and methods of making same | Ram B. Gupta | 2003-04-08 |
| 6537670 | Bis(alkyleneoxybenzophenone) ultraviolet light absorbers | — | 2003-03-25 |