Kempfer; Stephen T.
Patent Applications and Registrations
Patent applications and USPTO patent grants for Kempfer; Stephen T..The latest application filed is for "fuel pump boost system".
- Kempfer; Stephen T. - Canton MI
| Patent | Date |
|---|---|
| Fuel pump motor using carbon commutator having reduced filming Grant 8,267,668 - Nation , et al. September 18, 2 | 2012-09-18 |
| Regenerative fuel pump Grant 7,559,315 - Yu , et al. July 14, 2 | 2009-07-14 |
| Mechanical returnless fuel system Grant 7,302,938 - Yu , et al. December 4, 2 | 2007-12-04 |
| Fuel flange assembly for a vehicle fuel system Grant 7,185,682 - Riegel , et al. March 6, 2 | 2007-03-06 |
| Fuel pump boost system App 20060275137 - Kempfer; Stephen T. ; et al. | 2006-12-07 |
| Fuel system with a field modification module for controlling fuel flow Grant 7,086,838 - Thompson , et al. August 8, 2 | 2006-08-08 |
| Low evaporative emission fuel system depressurization via solenoid valve Grant 7,066,152 - Stroia , et al. June 27, 2 | 2006-06-27 |
| Fuel flange assembly for a vehicle fuel system App 20060130926 - Riegel; Taylor Leslie ; et al. | 2006-06-22 |
| System for controlling motor speed by altering magnetic field of the motor Grant 7,045,983 - Castle , et al. May 16, 2 | 2006-05-16 |
| Low evaporative emission fuel system depressurization via solenoid valve App 20060048752 - Stroia; Kathleen H. ; et al. | 2006-03-09 |
| In-tank fuel supply unit having long life filter App 20060000454 - Bhavsar; Daven Chinubhai ; et al. | 2006-01-05 |
| Pressure regulating valve for automotive fuel system Grant 6,953,026 - Yu , et al. October 11, 2 | 2005-10-11 |
| Fuel system with a field modification module for controlling fuel flow App 20050178366 - Thompson, James L. ; et al. | 2005-08-18 |
| System for controlling motor speed by altering magnetic field of the motor App 20050179413 - Castle, Harold L. ; et al. | 2005-08-18 |
| Mechanical returnless fuel system App 20050081826 - Yu, DeQuan ; et al. | 2005-04-21 |
| Pressure regulating valve for automotive fuel system App 20050081830 - Yu, DeQuan ; et al. | 2005-04-21 |
| Low deviation pressure relief valve for fuel pumps Grant 6,840,270 - Yu , et al. January 11, 2 | 2005-01-11 |
| Gerotor fuel pump having primary and secondary inlet and outlet portings App 20040101427 - Yu, DeQuan ; et al. | 2004-05-27 |
| Fuel delivery check valve for automotive application App 20040094131 - Yu, DeQuan ; et al. | 2004-05-20 |
| Low deviation pressure relief valve for fuel pumps App 20040069351 - Yu, DeQuan ; et al. | 2004-04-15 |
| Automotive returnless fuel system pressure valve Grant 5,477,829 - Hassinger , et al. December 26, 1 | 1995-12-26 |
| Returnless fuel delivery system Grant 5,237,975 - Betki , et al. August 24, 1 | 1993-08-24 |
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