Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4874803 | Dianhydride coupled polymer stabilizers | Arthur L. Baron, Terry N. Myers | 1989-10-17 |
| 4801749 | Phenolic antioxidant hydrazides | Robert T. Kazmierczak, Ronald E. MacLeay | 1989-01-31 |