Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4644178 | Signal processing for optical image sensor | — | 1987-02-17 |
| 4640616 | Automatic refractometer | — | 1987-02-03 |
| 4549149 | Current to frequency converter switched to increased frequency when current input low | — | 1985-10-22 |
| 4519692 | Exposure and camera control | — | 1985-05-28 |
| 4380159 | Leather splitting machine | — | 1983-04-19 |