Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8763570 | Engine assembly including multiple bore center pitch dimensions | Alan W. Hayman | 2014-07-01 |
| 6505589 | Single cam three-valve engine overhead valve train | Alan W. Hayman, James J. Mazzola, III, Frederick J. Rozario | 2003-01-14 |
| 6505591 | Valve train with assembly guides | Alan W. Hayman | 2003-01-14 |
| 5829406 | Balancing crankcase pressure | James J. Mazzola, III | 1998-11-03 |