Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4877502 | Poly(epoxide) coatings containing a mannich base of a hydroxystyrene containing polymer | Donna L. Keene | 1989-10-31 |
| 4872960 | Protective coatings of a cured hydroxystyrene mannich base and blocked polyisocyantes | Donna L. Keene | 1989-10-10 |