Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4570033 | Polyphase digitizer | — | 1986-02-11 |
| 4552991 | Absolute position coordinate determining device employing a single phase difference measurement to determine cursor position | — | 1985-11-12 |
| 4189940 | Engine fault diagnosis | Stephen C. Hadden, Lee R. Armstrong | 1980-02-26 |