Issued Patents All Time
Showing 26–31 of 31 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4320217 | Polymerization products of polyimide derivatives having acetylenic terminal amide groups | Phillip A. Waitkus | 1982-03-16 |
| 4316845 | Polyimide derivatives having terminal acetylenic groups | Phillip A. Waitkus | 1982-02-23 |
| 4316844 | Polyimide derivatives having unsaturated terminal amic acid groups | Phillip A. Waitkus | 1982-02-23 |
| 4316843 | Polyimide derivatives having terminal unsaturated amides | Phillip A. Waitkus | 1982-02-23 |
| 4297467 | Polymerization products of polyimide derivatives having unsaturated terminal amide groups | Phillip A. Waitkus | 1981-10-27 |
| 4197397 | Chain-extending anhydride end-capped polyimides | — | 1980-04-08 |