Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7337758 | Charge motion control valve actuator | David R. Sturdy, Ronald L. Marsh, James Derek Gallaher | 2008-03-04 |
| 7111602 | Intake manifold tuning valve actuator | David R. Sturdy, Ronald L. Marsh, James Derek Gallaher | 2006-09-26 |