Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9938933 | Fuel system for a combustion engine | Michael Thomas Roll, Jerrold Arthur Pratt | 2018-04-10 |
| 9745903 | Dual fuel system for a combustion engine | Jared J. Wentz, Michael Thomas Roll, Amy Lindblad, Jerrold Arthur Pratt | 2017-08-29 |
| 9422877 | System and method for control of exhaust gas recirculation (EGR) utilizing process temperatures | — | 2016-08-23 |
| 7272932 | System and method of use of expansion engine to increase overall fuel efficiency | David B. Watson | 2007-09-25 |
| 6061637 | Method of determining knock resistance rating for non-commercial grade natural gas | Richard J. Kakoczki, John E. Peffer | 2000-05-09 |