Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4859623 | Method of forming vertical gate thin film transistors in liquid crystal array | — | 1989-08-22 |
| 4855636 | Micromachined cold cathode vacuum tube device and method of making | Raul D. Cuellar | 1989-08-08 |