Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| RE42876 | Apparatus and method for operating internal combustion engines from variable mixtures of gaseous fuels | James W. Heffel, Chan Seung Park | 2011-11-01 |
| 6612269 | Apparatus and method for operating internal combustion engines from variable mixtures of gaseous fuels | James W. Heffel | 2003-09-02 |
| 5506570 | Gasoline dispenser warning announces | Steve R. Vezerian | 1996-04-09 |