Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4849501 | Polyimide coating compositions based on meta-dialkyldihydrogen pyromellitate and aromatic diamines | Richard D. Diller, deceased, Anthony F. Arnold, Ying-Ying Cheng, Patricia Metzger Cotts, Donald C. Hofer +3 more | 1989-07-18 |