Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9080522 | Engine efficiency system for a vehicle and method of operating an engine efficiency system | Thomas A. Spix | 2015-07-14 |
| 8602008 | Positive crankcase ventilation system | Thomas A. Spix | 2013-12-10 |
| 6845743 | Oil pan with vertical baffles for oil flow control | — | 2005-01-25 |
| 6530354 | Oil pan with vertical baffles | John A. Holzerland, Stanley P. Nunes | 2003-03-11 |
| 5232422 | Exercise device | — | 1993-08-03 |