Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4835249 | Process for preparing polyimides | Ronald A. Greenberg | 1989-05-30 |
| 4808686 | Silicone-polyimides, and method for making | James Anthony Cella, Gary Shank | 1989-02-28 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4835249 | Process for preparing polyimides | Ronald A. Greenberg | 1989-05-30 |
| 4808686 | Silicone-polyimides, and method for making | James Anthony Cella, Gary Shank | 1989-02-28 |