Issued Patents 2004
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6741441 | Electromagnetic actuator system and method for engine valves | Harold Sean Hilbert, Stephen Newton, Shawn Swales, Youqing Xiang | 2004-05-25 |
| 6681731 | Variable valve mechanism for an engine | Lawrence A. Mianzo, Brett Collins, Ibrahim Haskara, Harold Sean Hilbert | 2004-01-27 |