Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7287522 | Engine system having carbon foam exhaust gas heat exchanger | Brandon Dykstra, James J. Callas, Kevin L. Martin | 2007-10-30 |
| 6546919 | Combined remote first intake air aftercooler and a second fluid from an engine cooler for an engine | James J. Callas, Donald W. Heston | 2003-04-15 |
| 6318347 | Remote mounted air-to-air aftercooler | Paul A. Dicke, Donald C. Hodges, Jiubo Ma, Aubery W. Penn | 2001-11-20 |
| 6314921 | Turbocharged engine cooling system with two-pass radiator | Michael D. Ash, Michael D. Betz | 2001-11-13 |
| 6158399 | Turbocharged engine cooling system with two-pass radiator | Michael D. Ash, Michael D. Betz | 2000-12-12 |