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Your search returned 1726 patents.
( 60/274 in Current US Classification ) |
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| Patent ID | Title | Date Filed |
| 7168237 | Deterioration diagnosing device and diagnosing method for exhaust gas purification catalyst
| February 23, 2005 |
| 7165393 | System and methods for improved emission control of internal combustion engines
| December 3, 2002 |
| 7165391 | Method to reduce engine emissions for an engine capable of multi-stroke operation and having a catalyst
| March 19, 2004 |
| 7165389 | Catalyst degradation determining method
| May 20, 2005 |
| 7162866 | Method for operating an internal combustion engine, especially a motor vehicle internal combustion engine
| April 30, 2002 |
| 7162865 | Method and arrangement for controlling a drive unit having an internal combustion engine
| November 5, 2003 |
| 7162864 | Method for control of NOx emission from combustors using fuel dilution
| November 4, 2003 |
| 7162863 | Exhaust gas purifying apparatus for internal combustion engine
| December 16, 2004 |
| 7162861 | Method of improving performance of emission control devices by controlling exhaust oxygen content
| February 9, 2005 |
| 7159392 | Estimation of particulate matter deposit amount in diesel particulate filter
| August 10, 2005 |
| 7159391 | Method for restricting excessive temperature rise of filter in internal combustion engine
| September 9, 2004 |
| 7159387 | Emission control device
| March 5, 2004 |
| 7159385 | Apparatus for and method of detecting deterioration of catalyst in internal combustion engine
| December 14, 2004 |
| 7159384 | Regeneration control of diesel particulate filter
| December 14, 2004 |
| 7155901 | Catalyst temperature control on an electrically throttled engine
| April 15, 2003 |
| 7155899 | Method for heating an exhaust gas catalyst for an internal combustion engine operating with direct fuel injection
| October 9, 2003 |
| 7153342 | Exhaust gas purifying system of internal combustion engine
| January 8, 2004 |
| 7152396 | Reductant distributor for lean NOx trap
| December 10, 2004 |
| 7152395 | Method and apparatus for controlling internal combustion engine
| April 22, 2004 |
| 7152394 | System and method for reducing nitrogen oxides in the exhaust of an internal combustion engine
| July 19, 2002 |
| 7150146 | Method of operating an exhaust gas treatment system for an internal combustion engine
| November 18, 2004 |
| 7150145 | Control system for mobile NOx SCR applications
| December 17, 2003 |
| 7146803 | Method and arrangement for monitoring the operability of a secondary air system
| February 14, 2003 |
| 7146802 | Reducing NO.sub.x emissions with a staged catalyst
| October 7, 2004 |
| 7146800 | Exhaust purification device and exhaust purification method of internal combustion engine
| June 14, 2004 |
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