Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7258107 | Temperature-controlled fuel injection system for two-stroke engines | Daniel J. Johnson, Kim Chervestad | 2007-08-21 |
| 6951203 | Ignition timing control system | — | 2005-10-04 |
| 6550450 | Two-cycle engine with exhaust temperature-controlled ignition timing | — | 2003-04-22 |
| 6371082 | Two-cycle engine with exhaust temperature-controlled ignition timing | — | 2002-04-16 |
| 6237566 | Two-cycle engine with exhaust temperature-controlled ignition timing | — | 2001-05-29 |