Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6611145 | Motorcycle having a system for combustion diagnostics | Eric Norppa, Frederick K. Lenhart, Barth Fisk | 2003-08-26 |
| 6588259 | Motorcycle having system for determining engine phase | Eric Norppa, Barth Fisk | 2003-07-08 |
| 6505606 | Motorcycle having a system for combustion knock control | Eric Norppa, Frederick K. Lenhart, Michael Martin | 2003-01-14 |
| 6499341 | Motorcycle having system for determining engine phase | Eric Norppa, Barth Fisk | 2002-12-31 |
| 6386183 | Motorcycle having system for combustion knock control | Eric Norppa, Frederick K. Lenhart, Michael Martin | 2002-05-14 |