Issued Patents 1989
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4866104 | Polyimide foams and their production | — | 1989-09-12 |
| 4855332 | Polyimide foams and their production | — | 1989-08-08 |
| 4839398 | Polyimide foams and their preparation | — | 1989-06-13 |
| 4826886 | Polyimide foams and their production | — | 1989-05-02 |
| 4816493 | Polyimide foams and their preparation | — | 1989-03-28 |
| 4814357 | Polyimide foams and their preparation | — | 1989-03-21 |