Issued Patents All Time
Showing 1–22 of 22 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9404463 | Method for performing evaporative emission system diagnostics on engines configured for stop-start operation | Yichao Guo, James W. Jeffers | 2016-08-02 |
| 8820152 | Diagnostic method for a refueling event detection system | Paulo F. R. Tranquilli | 2014-09-02 |
| 8813545 | Method for diagnosing component failure in a saddle-type fuel tank assembly | Yichao Guo, James W. Jeffers | 2014-08-26 |
| 8499624 | Method to determine performance characteristic of an engine exhaust system | James W. Jeffers, Mike W. French | 2013-08-06 |
| 7975536 | Method to detect the presence of a liquid-cooled engine supplemental heater | Eric Bommer, Michael E. List, Warren Huang | 2011-07-12 |
| 7647158 | Apparatus and method for diagnosing an airflow modifying control system | Peter H. Maehling | 2010-01-12 |
| 7350512 | Method of validating a diagnostic purge valve leak detection test | Daniel Meacham, Timothy K. Sheffer, Mitchell Ober, Carol A. Galskoy | 2008-04-01 |
| 7314034 | System for verifying cylinder deactivation status in a multi-cylinder engine | James P. Waters, Jon C. Darrow | 2008-01-01 |
| 7203617 | Method of diagnosing a low range limiting malfunction of an engine coolant temperature sensor | Mahfuzur Rahman | 2007-04-10 |
| 7147366 | Method and apparatus for assessing the rationality of a transmission fluid temperature measure | Steve L. Melby | 2006-12-12 |
| 7120535 | Method and apparatus to evaluate an intake air temperature monitoring circuit | Mahfuzur Rahman, Paulo F. R. Tranquilli | 2006-10-10 |
| 7120531 | Method of determining a default transmission input speed | Steve L. Melby, Andrew D. Herman, David Allen Dues, Hallett D. Breidenbach | 2006-10-10 |
| 7107134 | Method of determining a default transmission output speed | Steve L. Melby, Andrew D. Herman, David Allen Dues, Hallett D. Breidenbach | 2006-09-12 |
| 6722187 | Enhanced vacuum decay diagnostic and integration with purge function | Malcolm James Grieve, Stephen F. Majkowski, Michael J. Steckler, Carelton Williams | 2004-04-20 |
| 6640621 | Diagnostic method for a shaft sensor in a reciprocating internal combustion engine | James D. Ward, Alton L. Schuessler, Hallett D. Breidenbach | 2003-11-04 |
| 6546911 | Default methodology for recovering from loss of high resolution engine position signal | Salem Ahmad Fayyad, Peter H. Maehling, Charles O. James, Jr. | 2003-04-15 |
| 6390077 | Adaptive flow restriction test method for an exhaust gas recirculation system | Michael Cottrell, Stephen F. Majkowski, Hallett D. Breidenbach, Alton L. Schuessler | 2002-05-21 |
| 6382017 | Evaporative emission leak detection method with vapor generation compensation | Stephen F. Majkowski | 2002-05-07 |
| 6334355 | Enhanced vacuum decay diagnostic and integration with purge function | Malcolm James Grieve, Stephen F. Majkowski, Michael J. Steckler, Carelton Williams | 2002-01-01 |
| 6321695 | Model-based diagnostic method for an engine cooling system | In Kwang Yoo, Stephen F. Majkowski | 2001-11-27 |
| 6311548 | Method of validating a diagnostic leak detection test for a fuel tank | Hallett D. Breidenbach, Stephen F. Majkowski | 2001-11-06 |
| 6308119 | Preset diagnostic leak detection method for an automotive evaporative emission system | Stephen F. Majkowski, Michael J. Steckler, Malcolm James Grieve | 2001-10-23 |