| Patent | Date |
|---|
Method of introducing selectivity to nonselective gas sensors
Grant 5,831,145 - Logothetis , et al. November 3, 1 | 1998-11-03 |
Engine air/fuel control system with catalytic converter and exhaust gas oxygen sensor monitoring
Grant 5,499,500 - Hamburg , et al. March 19, 1 | 1996-03-19 |
Cold start engine air/fuel control system
Grant 5,465,697 - Hamburg , et al. November 14, 1 | 1995-11-14 |
Air/fuel control with on-board emission measurement
Grant 5,452,576 - Hamburg , et al. September 26, 1 | 1995-09-26 |
Adaptive control of EGO sensor output
Grant 5,375,415 - Hamburg , et al. December 27, 1 | 1994-12-27 |
Feedback control system
Grant 5,341,643 - Hamburg , et al. August 30, 1 | 1994-08-30 |
Air/fuel feedback control system
Grant 5,329,764 - Hamburg , et al. July 19, 1 | 1994-07-19 |
Method for determining relative amount of oxygen containing gas in a gas mixture
Grant 5,288,375 - Logothetis , et al. * February 22, 1 | 1994-02-22 |
Selective combustible sensor and method
Grant 5,281,313 - Visser , et al. January 25, 1 | 1994-01-25 |
Method and apparatus for determining the hydrocarbon conversion efficiency of a catalytic converter
Grant 5,265,417 - Visser , et al. November 30, 1 | 1993-11-30 |
Apparatus for sensing hydrocarbons and carbon monoxide
Grant 5,250,169 - Logothetis , et al. October 5, 1 | 1993-10-05 |
Materials having a zero resistance transition temperature above 200 K and method for maintaining the zero resistance property
Grant 5,232,904 - Wenger , et al. August 3, 1 | 1993-08-03 |
Engine operation interrupt using engine operating parameters
Grant 5,205,253 - Shelef , et al. April 27, 1 | 1993-04-27 |
Engine operation interrupt using ambient oxygen sensing
Grant 5,199,396 - Shelef , et al. April 6, 1 | 1993-04-06 |
Method for determining relative amount of oxygen containing gas in a gas mixture
Grant 5,145,566 - Logothetis , et al. * September 8, 1 | 1992-09-08 |
Measurement and control of exhaust gas recirculation with an oxygen pumping device
Grant 5,089,113 - Logothetis , et al. February 18, 1 | 1992-02-18 |
Exhaust gas recirculation sensor
Grant 5,049,254 - Logothetis , et al. * September 17, 1 | 1991-09-17 |
Measurement and control of exhaust gas recirculation with an oxygen pumping device
Grant 4,909,072 - Logothetis , et al. March 20, 1 | 1990-03-20 |
Method of sensing methane gas-I
Grant 4,870,025 - Hurley , et al. September 26, 1 | 1989-09-26 |
Oxides of nitrogen detector
Grant 4,840,913 - Logothetis , et al. June 20, 1 | 1989-06-20 |
Tandem deposition of cermets
Grant 4,591,417 - Kaiser , et al. May 27, 1 | 1986-05-27 |
Method of making a titanium dioxide oxygen sensor element by chemical vapor deposition
Grant 4,504,522 - Kaiser , et al. March 12, 1 | 1985-03-12 |
Planar ZrO.sub.2 oxygen pumping sensor
Grant 4,487,680 - Logothetis , et al. December 11, 1 | 1984-12-11 |
Rare earth or yttrium, transition metal oxide thermistors
Grant 4,231,254 - Logothetis , et al. * November 4, 1 | 1980-11-04 |
Rare earth or yttrium, transition metal oxide thermistors
Grant 4,162,631 - Logothetis , et al. July 31, 1 | 1979-07-31 |
Circuit for converting a temperature dependent input signal to a temperature independent output signal
Grant 4,028,642 - Kushida , et al. June 7, 1 | 1977-06-07 |
Cobalt-magnesium monoxide alloy ceramic partial pressure of oxygen sensor
Grant 4,012,709 - Logothetis , et al. March 15, 1 | 1977-03-15 |
Air/fuel ratio sensor for air/fuel ratios in excess of stoichiometry
Grant 3,933,028 - Laud , et al. January 20, 1 | 1976-01-20 |
Circuit for converting a temperature dependent input signal to a temperature independent output signal
Grant 3,915,135 - Kushida , et al. October 28, 1 | 1975-10-28 |
Circuit For Converting A Temperature Dependent Input Signal To A Temperature Independent Output Signal
Grant 3,868,846 - Kushida , et al. March 4, 1 | 1975-03-04 |
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