Issued Patents All Time
Showing 26–37 of 37 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7937209 | Air fuel ratio control system for internal combustion engines | Kenneth P. Dudek, Sai S. V. Rajagopalan, Stephen Yurkovich, Yann G. Guezennec, Shawn W. Midlam-Mohler +1 more | 2011-05-03 |
| 7921705 | Engine coolant temperature estimation system | Wajdi B. Hamama, Jon C. Miller, John W. Siekkinen, Steven J. Shepherd, Robert S. Wickman +1 more | 2011-04-12 |
| 7900439 | Exhaust system monitoring methods and systems | Robert J. Genslak, Justin F. Adams, Jeffry A. Helmick, Edward Stuteville, Wesley W. Wald +1 more | 2011-03-08 |
| 7900615 | Air-fuel imbalance detection based on zero-phase filtering | Zhong Wang, Lan Wang, Ian J. Mac Ewen, Steven Ward Majors, Cheol S. Lee | 2011-03-08 |
| 7881859 | Torque converter clutch control system and post oxygen sensor performance diagnostic system | Douglas J. Moening, John W. Siekkinen, Jayson S. Schwalm, Daniel J. Wickman | 2011-02-01 |
| 7873464 | Block heater usage detection and coolant temperature adjustment | Samuel Bryan Shartzer, Wajdi B. Hamama, Roberto De Paula, Jaehak Jung, John W. Siekkinen | 2011-01-18 |
| 7467544 | Brake booster vacuum sensor rationality check | Zhong Wang, Wenbo Wang, John F. Van Gilder | 2008-12-23 |
| 7444235 | Post catalyst oxygen sensor diagnostic | Thomas L. Ting, Zhong Wang, Justin F. Adams | 2008-10-28 |
| 7152594 | Air/fuel imbalance detection system and method | Louis A. Avallone, David N. Belton, Ian J. Mac Ewen, Vincent A. White | 2006-12-26 |
| 6996974 | Fuel control failure detection based on post O2 sensor | David N. Belton, David Frank, Ian J. Mac Ewen | 2006-02-14 |
| 6957562 | Passive oxygen sensor diagnostic | Thomas L. Ting | 2005-10-25 |
| 6868666 | Method and apparatus for monitoring catalyst efficiency and outlet oxygen sensor performance | David Frank, Wenbo Wang | 2005-03-22 |