Issued Patents 1989
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4868967 | Tubular article | Neil L. Holt, Peter Larsson, Stephen E. Sheehan, Jeffrey A. Bennett | 1989-09-26 |
| 4838653 | Liquid crystal display with particular relationship of the capacitances | — | 1989-06-13 |
| 4823078 | Device for A.C. voltage testing using a voltage multiplier and LCD display | — | 1989-04-18 |
| 4818072 | Method for remotely detecting an electric field using a liquid crystal device | — | 1989-04-04 |