Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4430640 | Step data to synchro converter | William T. Spurgin | 1984-02-07 |
| 4401932 | Synchro-to-step data converter | William T. Spurgin | 1983-08-30 |
| 4202014 | Pulse modulated automatic light control | Lawrence H. Gilligan | 1980-05-06 |