Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6123061 | Crankcase ventilation system | Glenn L. Baker, John M. Partridge, Brett Herrick | 2000-09-26 |
| 5669366 | Closed crankcase ventilation system | Donald W. Beach, Peter K. Herman, Alan S. Bounnakhom, John M. Partridge, J. Eric Parlow | 1997-09-23 |
| 5456239 | Crankcase ventilation system | Gregory H. Henderson, Brian W. Zellmer, Chad L. Kelly, Philip C. Kreimer | 1995-10-10 |