Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4808694 | Poly(arylene sulfide sulfone) polymer containing ether groups | James T. Edmonds, Jr., Jon F. Geibel, Jim J. Straw | 1989-02-28 |
| 4808698 | Production of aromatic sulfide/sulfone polymers | Earl Clark, Jr. | 1989-02-28 |