Issued Patents 2004
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6834636 | Single-ended barrel engine with double-ended, double roller pistons | Charles Thomas, Bret Hauser | 2004-12-28 |
| 6769393 | Valve system for internal combustion engine | Stanley Kevin Widener, Barry E. Westmoreland | 2004-08-03 |