Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4889912 | Acetylene terminated aspartimides and resins therefrom | John W. Connell, Stephen J. Havens | 1989-12-26 |
| 4861882 | Ethynyl terminated imidothioethers and resins therefrom | John W. Connell, R. Gerald Bass | 1989-08-29 |
| 4820791 | Polyimides containing carbonyl and ether connecting groups | Stephen J. Havens | 1989-04-11 |