Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4870155 | Novel poly (etherimide) compositions | Markus Matzner, Donald M. Papuga | 1989-09-26 |
| 4861915 | Poly (aryl ether ketone) block copolymers | Robert A. Clendinning, James E. Harris, George T. Kwiatkowski, Lee P. McMaster, Markus Matzner | 1989-08-29 |
| 4820790 | Chain-extended poly(aryl ether ketones) | Markus Matzner | 1989-04-11 |