Issued Patents All Time
Showing 26–31 of 31 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D385257 | Motorcycle ignition kill switch | Donna Pingel | 1997-10-21 |
| D363762 | Fuel valve | Donna Pingel | 1995-10-31 |
| D363533 | Fuel valve | Arlen Ness, Donna Pingel | 1995-10-24 |
| D330712 | Fuel filter | Donna Pingel | 1992-11-03 |
| 4957138 | Anti-siphoning device for a reserve metering valve | Donna Pingel | 1990-09-18 |
| 4250921 | Reserve metering valve | Donna Pingel | 1981-02-17 |