U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

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Examiner: Tran, Diem


Primary examiner statistics: 4 patents; average approval time: 738 days
Assistant examiner statistics: 671 patents; average approval time: 672 days

Patents as Primary Examiner

Patent No. Patent Title:
7073323 Secondary air supply apparatus and method for detecting abnormali...
6775973 Continuous flow, NOx-reduction adsorption unit for internal combu...
6557341 Exhaust system of an internal combustion engine
6530214 Air-fuel ratio control apparatus having sub-feedback control

Patents as Assistant Examiner (view all)

Patent No. Patent Title:
8186149 Method for controlling NOreduction system
8181446 Exhaust emission purification apparatus for engine
8176732 Exhaust aftertreatment system
8171725 Method of controlling exhaust gas purification system, and exhaus...
8166750 Exhaust system
8161729 Exhaust purification system for internal combustion engine and co...
8141343 Air-fuel ratio control apparatus
8141349 Exhaust emission control device and method for internal combustio...
8141347 Reductant storage sensing system and method
8141346 System and method for monitoring reductant quality
8136345 Internal combustion engine exhaust treatment having a single valv...
8122705 Exhaust cleaning apparatus and method thereof
8117829 Exhaust emission control device and method for internal combustio...
8104271 Exhaust purification device and exhaust purification method of in...
8104266 Exhaust purification device of internal combustion engine
8099949 Engine exhaust temperature regulation
8096108 Engine warm-up of a homogeneous charge compression ignition engin...
8096111 Reduction of NOx trap at engine shutoff
8091344 System for modifying exhaust gas flow through an aftertreatment d...
8091340 Method of controlling the intake of an internal-combustion engine...
8091341 Exhaust gas purification method and exhaust gas purification syst...
8079209 Urea-SCR system and control method thereof
8074443 Pre-combustor and large channel combustor system for operation of...
8069659 Multiple-shell silencer / rear shell port
8069649 Exhaust emission purifying apparatus for engine
8069653 Interchangeable nozzle for a dispensing module
8061123 Method and system of thermal management in an exhaust system
8056328 Exhaust diffuser for a truck
8042325 Adapting indicated engine torque during regeneration of a diesel ...
8037672 Method and apparatus for detecting a non-operational status of a ...
8033096 Exhaust gas purifying apparatus for engine
8011177 Exhaust particulate filter
8001767 Engine controller
8001770 Exhaust system for an internal combustion engine
7997071 Exhaust flow distribution device
7997069 Ash reduction system using electrically heated particulate matter...
7992376 Method for metering a fuel into an exhaust duct of an internal co...
7987662 Composition and method for controlling excessive exhaust gas temp...
7987666 Cooling apparatus for exhaust gas temperature control devices
7980068 Woven metal fiber particulate filter
 
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