Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6783336 | Fuel sender assembly | Stephen Kempfer, DeQuan Yu, Norman Krieger | 2004-08-31 |
| 6230677 | Storage battery protection by engine air intake system | — | 2001-05-15 |
| 6230833 | Storage battery tuning of engine air intake system | — | 2001-05-15 |
| 6152096 | Storage battery protection by engine air intake system | — | 2000-11-28 |