Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7045983 | System for controlling motor speed by altering magnetic field of the motor | Harold L. Castle, DeQuan Yu, Stephen Kempfer, Paul Fisher, Sheven Sharp +1 more | 2006-05-16 |
| 6984099 | Fuel pump impeller | DeQuan Yu, Stephen Kempfer, Joseph Grabowski | 2006-01-10 |
| 6890144 | Low noise fuel pump design | DeQuan Yu, Stephen Kempfer, Paul Fisher, David M. Dokas | 2005-05-10 |
| 6824361 | Automotive fuel pump impeller with staggered vanes | DeQuan Yu, Paul Fisher, Stephan Thomas Kempfer | 2004-11-30 |
| 6783336 | Fuel sender assembly | Stephen Kempfer, DeQuan Yu, David Joseph Setsuda | 2004-08-31 |
| 6675778 | Fuel sender assembly | Stephen Thomas Kemper, DeQuan Yu, David Zultowski, Vipin F. Patel | 2004-01-13 |