Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5300545 | Process for stabilizing polymer compositions against heat or light effects | Robert T. Kazmierczak | 1994-04-05 |
| 4983738 | Reactive hindered amine light stabilizers | Robert T. Kazmierczak | 1991-01-08 |