Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4885336 | Low gloss polycarbonate blend | Charles F. Pratt | 1989-12-05 |
| 4873277 | Aromatic carbonate resin exhibiting improved impact properties | — | 1989-10-10 |
| 4868244 | Low-gloss carbonate polymer blends | — | 1989-09-19 |