Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6450890 | Minimal mass hollow balance shaft | Michael D. Hendrian, Steven J. Chevalier | 2002-09-17 |
| 6244239 | Integrated front end accessory drive system | Steve Chevalier | 2001-06-12 |
| 5483932 | Hollow balance shaft | Ronald S. Friedman | 1996-01-16 |
| 5231893 | Dual mode damper | Timothy M. Haylett | 1993-08-03 |