Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4847351 | Liquid crystalline polyesters | David Neal Schissel, Gary William Yeager | 1989-07-11 |
| 4845184 | Liquid crystalline polyesters | David Neal Schissel, Gary William Yeager | 1989-07-04 |