Issued Patents All Time
Showing 26–34 of 34 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4293188 | Fiber optic small displacement sensor | — | 1981-10-06 |
| 4291976 | Digital fiber optic position sensor | — | 1981-09-29 |
| 4278327 | Liquid crystal matrices | Richard A. Soref | 1981-07-14 |
| 4265509 | High speed holographic optical printing system | — | 1981-05-05 |
| 4208651 | Fingerprint identification by ridge angle and minutiae recognition | — | 1980-06-17 |
| 4201442 | Liquid crystal switching coupler matrix | Richard A. Soref | 1980-05-06 |
| 4185884 | Four port optical internal reflectance switchable coupler | — | 1980-01-29 |
| 4182544 | Resonant multiplexer-demultiplexer for optical data communication systems | — | 1980-01-08 |
| 4181399 | Optical internal reflectance switchable coupler | Arthur R. Nelson | 1980-01-01 |