Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6450890 | Minimal mass hollow balance shaft | Steven J. Chevalier, William C. Sisco | 2002-09-17 |
| 6216327 | Spoke centered puller tab crankshaft damper hub | — | 2001-04-17 |
| 5857388 | Balance shafts having minimal mass | David L. Killion, Robert J. Crist | 1999-01-12 |