Issued Patents 1982
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4335234 | Use of manganese chelate to oxidatively couple phenolic compound in a self-precipitating system | Otto S. Zamek | 1982-06-15 |
| 4312803 | Thermally stable polycarbonate compositions | Ronald L. Markezich, Gary L. Freimiller, Robert J. Axelrod | 1982-01-26 |