Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4490796 | Print head motor control system using analog and digital feedback | Samuel E. Bigbie, Barry R. Cavill, Albert A. Nawy | 1984-12-25 |
| 4460968 | Print head motor control with stop distance compensation | Barry R. Cavill | 1984-07-17 |
| 4441077 | Real time eddy current responsive Hall effect device tachometer | Ludwig R. Siegl | 1984-04-03 |