Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4888227 | Zinc titanate in poly(arylene sulfide) compositions | John E. Leland | 1989-12-19 |
| 4798863 | Zinc titanate in poly (arylene sulfide) compositions | John E. Leland | 1989-01-17 |