Issued Patents All Time
Showing 476–500 of 534 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6745747 | Method for air-fuel ratio control of a lean burn engine | — | 2004-06-08 |
| 6736120 | Method and system of adaptive learning for engine exhaust gas sensors | — | 2004-05-18 |
| 6735939 | System and method for monitoring and exhaust gas sensor in an engine | — | 2004-05-18 |
| 6735938 | Method to control transitions between modes of operation of an engine | — | 2004-05-18 |
| 6725830 | Method for split ignition timing for idle speed control of an engine | — | 2004-04-27 |
| 6715462 | Method to control fuel vapor purging | David Karl Bidner | 2004-04-06 |
| 6708483 | Method and apparatus for controlling lean-burn engine based upon predicted performance impact | Jerry D. Robichaux, David Karl Bidner | 2004-03-23 |
| 6691669 | Overall scheduling of a lean burn engine system | John M. Roth | 2004-02-17 |
| 6684631 | Method and system for reducing NOx tailpipe emissions of a lean-burn internal combustion engine | Jeffrey Scott Hepburn, Jerry D. Robichaux, Michael John Cullen | 2004-02-03 |
| 6672053 | Fueling control during emission control device purging | David Karl Bidner, Imad Hassan Makki | 2004-01-06 |
| 6662638 | System and method for determining degradation of an exhaust gas sensor in an engine | — | 2003-12-16 |
| 6650991 | Closed-loop method and system for purging a vehicle emission control | David George Farmer | 2003-11-18 |
| 6629453 | Method and apparatus for measuring the performance of an emissions control device | David Karl Bidner | 2003-10-07 |
| 6622476 | Lean NOx storage estimation based on oxygen concentration corrected for water gas shift reaction | Grant Alan Ingram | 2003-09-23 |
| 6604504 | Method and system for transitioning between lean and stoichiometric operation of a lean-burn engine | David George Farmer | 2003-08-12 |
| 6594986 | Oxidant storage capacity estimation | Grant Alan Ingram | 2003-07-22 |
| 6594989 | Method and apparatus for enhancing fuel economy of a lean burn internal combustion engine | Jeffrey Scott Hepburn, Jerry D. Robichaux, Michael John Cullen | 2003-07-22 |
| 6594985 | Exhaust gas aftertreatment device efficiency estimation | Grant Alan Ingram | 2003-07-22 |
| 6591604 | Oxygen storage capacity estimation | Grant Alan Ingram | 2003-07-15 |
| 6588200 | Method for correcting an exhaust gas oxygen sensor | Grant Alan Ingram | 2003-07-08 |
| 6574953 | NOx purge air/fuel ratio selection | Grant Alan Ingram, Jeffrey Scott Hepburn, John M. Roth, Joseph Robert Theis | 2003-06-10 |
| 6568177 | Method for rapid catalyst heating | — | 2003-05-27 |
| 6553757 | NOx purge air/fuel ratio selection | Grant Alan Ingram | 2003-04-29 |
| 6543431 | System for air-fuel ratio control | Salomone Castro | 2003-04-08 |
| 6543219 | Engine fueling control for catalyst desulfurization | — | 2003-04-08 |