Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5671707 | Rocker level oil shroud | John Jerl Purcell, III, Cynthia I. Mandt | 1997-09-30 |
| 4885953 | Gear train housing of an engine | Roger D. Sweetland | 1989-12-12 |
| 4854746 | Crankshaft bearing cap location scheme | James D. Baugh | 1989-08-08 |