Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11454180 | Systems and methods for exhaust gas recirculation | Srikanth Aravamuthan, Michael Haas | 2022-09-27 |
| 9915222 | Diesel piston with semi-hemispherical crown | David M. Barnes | 2018-03-13 |
| 9810177 | Internal combustion engine | David M. Barnes, Adam C. Cecil | 2017-11-07 |
| 8833327 | Piston and combustion chamber | Rishikesh Venugopal, John M. Deur | 2014-09-16 |
| 7069918 | Cylinder head having an internal exhaust gas recirculation passage | Ryo Fucinone | 2006-07-04 |
| 6971378 | Cylinder head having an internal exhaust gas recirculation passage | Ryo Fuchinoue | 2005-12-06 |