Issued Patents 2002
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6497207 | Deactivation roller hydraulic valve lifter | Mark J. Spath, Albert C. Stone, Carl R. Kangas | 2002-12-24 |
| 6439176 | Control system for deactivation of valves in an internal combustion engine | Natalie G. Payne, Tammy Stewart (Petronis) | 2002-08-27 |