Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6360710 | Rocket piston internal combustion engine | Roger C. Christenson | 2002-03-26 |
| 6035814 | Compound combustion expansion internal combustion engine | Roger C. Christenson | 2000-03-14 |
| 5261797 | Internal combustion engine/fluid pump combination | — | 1993-11-16 |
| 5249512 | Hydrostatic pump and motor | — | 1993-10-05 |
| 5143029 | Two cycle internal combustion hydrocycle engine | — | 1992-09-01 |
| 5109810 | Two cycle internal combustion hydrocycle engine | — | 1992-05-05 |