Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10473059 | Natural gas fuel system for an internal combustion engine | Corey W. Trobaugh, Daniel A. Norrick, Brian K. Wagner | 2019-11-12 |
| 9920711 | Natural gas fuel system for an internal combustion engine | Corey W. Trobaugh, Daniel A. Norrick, Brian K. Wagner | 2018-03-20 |