| 6637191 |
Method and system for diagnosing a secondary air supply for an internal combustion engine |
Gregory Ziemba |
2003-10-28 |
$27,479,000 |
| 6581371 |
Engine catalyst monitor |
Michael James Uhrich, Theodore M. Kostek |
2003-06-24 |
$24,300,000 |
| 6564543 |
System and method for monitoring a conditioning catalyst |
Michael James Uhrich, Theodore M. Kostek |
2003-05-20 |
$31,190,000 |
| 6453663 |
NOx sensor monitoring |
Michele Reichenbach, Timothy Joseph Clark, William Najib Mansur |
2002-09-24 |
$14,459,000 |
| 6024075 |
Engine control system with exhaust gas recirculation and method for determining proper functioning of the EGR system in an automotive engine |
David Karl Bidner, Jonathan D. Mehl, Ian J. Czaja |
2000-02-15 |
$115,336,000 |
| 5823171 |
Engine control system for an engine coupled to a fuel vapor recovery |
David George Farmer, Gopichandra Surnilla |
1998-10-20 |
$46,093,000 |
| 5765541 |
Engine control system for a lean burn engine having fuel vapor recovery |
David George Farmer, Gopichandra Surnilla |
1998-06-16 |
$44,463,000 |
| 5735255 |
Engine control system for a lean burn engine having fuel vapor recovery |
David George Farmer, Gopichandra Surnilla |
1998-04-07 |
$49,007,000 |
| 5706793 |
Method and system for monitoring fuel delivery of an engine |
David Karl Bidner |
1998-01-13 |
$52,762,000 |
| 5653102 |
Air/fuel control system with catalytic converter monitoring for a variable displacement engine |
Glenn A. Zimlich, David Karl Bidner |
1997-08-05 |
$26,338,000 |
| 5617829 |
Method for maintaining clean spark plugs in a variable displacement engine |
David Karl Bidner, Glenn A. Zimlich |
1997-04-08 |
$18,700,000 |
| 5522219 |
Exhaust system with bypass catalytic converter and diagnostics |
Glenn A. Zimlich |
1996-06-04 |
$15,298,000 |
| 5404718 |
Engine control system |
Tri T. Truong, David George Farmer |
1995-04-11 |
$10,538,000 |
| 5386693 |
Engine air/fuel control system with catalytic converter monitoring |
— |
1995-02-07 |
$19,175,000 |
| 5385016 |
Air/fuel control system responsive to duo upstream EGO sensors with converter monitoring |
Glenn A. Zimlich, Tri T. Truong |
1995-01-31 |
$20,275,000 |
| 5381656 |
Engine air/fuel control system with catalytic converter monitoring |
Glenn A. Zimlich, Tri T. Truong |
1995-01-17 |
$23,372,000 |
| 5363646 |
Engine air/fuel control system with catalytic converter monitoring |
Glenn A. Zimlich, Tri T. Truong |
1994-11-15 |
$10,061,000 |
| 5357751 |
Air/fuel control system providing catalytic monitoring |
— |
1994-10-25 |
$16,062,000 |
| 5353592 |
Engine air/fuel control with monitoring |
Glenn A. Zimlich, Tri T. Truong |
1994-10-11 |
$39,104,000 |
| 5325836 |
Flexible fuel control system with fuel transit delay compensation |
William Edward Boruta, Judith M. Curran |
1994-07-05 |
$14,098,000 |
| 5321978 |
Method and apparatus for detecting cylinder misfire in an internal combustion engine |
Arnold W. Brandt, Jeffrey Koncsol |
1994-06-21 |
$18,487,000 |
| 5245978 |
Control system for internal combustion engines |
— |
1993-09-21 |
$62,615,000 |
| 5228421 |
Idle speed control system |
— |
1993-07-20 |
$20,215,000 |
| 5224462 |
Air/fuel ratio control system for an internal combustion engine |
— |
1993-07-06 |
$29,259,000 |
| 5215055 |
Idle speed and fuel vapor recovery control system |
— |
1993-06-01 |
$27,855,000 |
