Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4874648 | Method of making flame resistant polyimide foam insulation and the resulting insulation | Francis V. Hill | 1989-10-17 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4874648 | Method of making flame resistant polyimide foam insulation and the resulting insulation | Francis V. Hill | 1989-10-17 |