Issued Patents 2004
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6814037 | Variable camshaft timing for internal combustion engine with actuator locking | Franklin R. Smith, Roger T. Simpson, Braman Wing, Michael Duffield | 2004-11-09 |
| 6772721 | Torsional assist cam phaser for cam in block engines | Mike Marsh, Mark M. Wigsten | 2004-08-10 |
| 6766777 | Method to ensure robust operation of a pin lock in a vane style cam phaser | Roger T. Simpson | 2004-07-27 |
| 6763791 | Cam phaser for engines having two check valves in rotor between chambers and spool valve | Michael Duffield | 2004-07-20 |