Issued Patents 2005
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6866020 | Vacuum management system for engine with variable valve lift | James F. Burkhard | 2005-03-15 |
| 6863048 | Vacuum system for engine with variable valve lift | James F. Burkhard, John S. Lylak, Jr. | 2005-03-08 |