Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4879761 | Bistable optically clocked optical signal regenerator | — | 1989-11-07 |
| 4863230 | Optically controlled selector | — | 1989-09-05 |
| 4817207 | Optical communication system utilizing phase modulation | David W. Smith | 1989-03-28 |