Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6161764 | Enhanced economizer controller | — | 2000-12-19 |
| 5519295 | Electrically operated actuator having a capacitor storing energy for returning the actuator to a preferred position upon power failure | — | 1996-05-21 |
| 4728832 | Alternating current motor with directional rotation reliability | Robert C. Knutson, Laurence C. Rodgers | 1988-03-01 |
| 4695782 | System for insuring rotational direction for an alternating current motor | — | 1987-09-22 |