Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4857227 | Liquid crystal mixtures having widened smectic temperature range | Timothy G. Adams | 1989-08-15 |
| 4843141 | Melt-processable aromatic polyesteramide having repeating 2,2'-substituted biphenylene radicals | Russell Gaudiana, Howard G. Rogers | 1989-06-27 |