Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6343574 | Load distribution rib for the combustion deck of an internal combustion engine | Jay F. Leonard, Terrence M. Shaw, David R. Glackin | 2002-02-05 |
| 6330872 | Cylinder head casting with gusset ribs | Jay F. Leonard | 2001-12-18 |