Issued Patents All Time
Showing 1–13 of 13 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10253900 | Latching valve assembly having position sensing | Robert Douglas Jefford, William John Boucher, David William Balsdon | 2019-04-09 |
| 9784224 | Latching solenoid exhaust gas recirculation valve assembly | Craig Andrew Weldon, David William Balsdon, Rick Vanwetten, William C. Gillier | 2017-10-10 |
| 9348002 | DLA rotor flux density scan method and tool | Craig Andrew Weldon | 2016-05-24 |
| 9182455 | DLA rotor flux density scan method and tool | Craig Andrew Weldon | 2015-11-10 |
| 6951126 | Fuel vapor leak test system and method comprising successive series of pulse bursts and pressure measurements between bursts | Paul D. Perry | 2005-10-04 |
| 6658925 | Initialization method of an automotive evaporative emission leak detection system | John E. Cook, Craig Andrew Weldon, Paul D. Perry | 2003-12-09 |
| 6631634 | Initialization method for an automotive evaporative emission leak detection system | John E. Cook, Craig Andrew Weldon, Paul D. Perry | 2003-10-14 |
| 6622545 | Leak detection system and method having self-compensation for changes in pressurizing pump efficiency | Craig Andrew Weldon | 2003-09-23 |
| 6561009 | Fuel vapor leak test system and method comprising P-I-D setting of pulse bursts to regulate target pressure | Paul D. Perry | 2003-05-13 |
| 6301955 | Driver circuit for fuel vapor leak detection system | John E. Cook, William John Boucher | 2001-10-16 |
| 6260410 | Initialization method for an automotive evaporative emission leak detection system | John E. Cook, Craig Andrew Weldon, Paul D. Perry | 2001-07-17 |
| 6044314 | Automotive evaporative emission leak detection system and method | John E. Cook, Craig Andrew Weldon, Paul D. Perry | 2000-03-28 |
| 5987968 | Automotive evaporative emission leak detection system module | John E. Cook, Craig Andrew Weldon, Paul D. Perry | 1999-11-23 |