Issued Patents 2004
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6782855 | Valve train and method for reducing oil flow to deactivated engine valves | Frederick J. Rozario, David R. Staley | 2004-08-31 |
| 6681734 | Hydraulic cylinder deactivation with rotary sleeves | — | 2004-01-27 |