Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4631657 | Control and force-sensing method and apparatus for motors | John W. Hill | 1986-12-23 |
| 4535405 | Control and force-sensing method and apparatus for motors | John W. Hill | 1985-08-13 |