Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7055469 | Combustion engine variable compression ratio apparatus and method | Keith E. Lawrence, Charles H. Dutart | 2006-06-06 |
| 6868842 | Cylinder head of engine having recirculation chamber | — | 2005-03-22 |