Issued Patents 1989
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4874072 | Viscous fan drive control with integrated speed sensor | Robert Joseph Mohan | 1989-10-17 |
| 4860844 | Power steering system | — | 1989-08-29 |
| 4828088 | Closed loop pulse modulated viscous fan control | Robert Joseph Mohan | 1989-05-09 |
| 4805463 | Torque transducer | William L. Kelledes | 1989-02-21 |