Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5012144 | Linear direct drive motor | Thomas W. Huitema, Stanley D. Heeres, Robert D. Vanderlaan | 1991-04-30 |
| 4612526 | Torque motor with high torque poles and magnetic centering spring adjustment | Robert D. Vanderlaan | 1986-09-16 |