Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4889912 | Acetylene terminated aspartimides and resins therefrom | Paul M. Hergenrother, John W. Connell | 1989-12-26 |
| 4820791 | Polyimides containing carbonyl and ether connecting groups | Paul M. Hergenrother | 1989-04-11 |