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Shi-Wai S. Cheng
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Troy, MI, US
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Patents Grants
last 30 patents
Information
Patent Grant
Method and apparatus for monitoring a hydrocarbon-selective catalyt...
Patent number
8,713,914
Issue date
May 6, 2014
GM Global Technology Operations LLC
Steven J. Schmieg
Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information
Patent Grant
Method to monitor HC-SCR catalyst NOx reduction performance for lea...
Patent number
8,186,151
Issue date
May 29, 2012
GM Global Technology Operations LLC
Michael B. Viola
Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information
Patent Grant
Rolling regeneration diesel particulate trap
Patent number
8,043,572
Issue date
Oct 25, 2011
GM Global Technology Operations LLC
Shi-Wai S. Cheng
Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information
Patent Grant
Exhaust particulate filter
Patent number
8,011,177
Issue date
Sep 6, 2011
GM Global Technology Operations LLC
Shi-Wai S. Cheng
Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information
Patent Grant
Exhaust particulate filter
Patent number
7,716,921
Issue date
May 18, 2010
GM Global Technology Operations, Inc.
Shi-Wai S. Cheng
F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information
Patent Grant
Method and apparatus for filtering exhaust particulates
Patent number
7,524,360
Issue date
Apr 28, 2009
GM Global Technology Operations, Inc.
Shi-Wai S. Cheng
Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information
Patent Grant
Apparatus for sensing particulates in a gas flow stream
Patent number
7,334,401
Issue date
Feb 26, 2008
GM Global Technology Operations, Inc.
Shi-Wai S. Cheng
Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information
Patent Grant
Reductant distributor for lean NOx trap
Patent number
7,152,396
Issue date
Dec 26, 2006
General Motors Corporation
Shi-Wai S. Cheng
Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information
Patent Grant
Apparatus and method for lessening the accumulation of high boiling...
Patent number
7,104,238
Issue date
Sep 12, 2006
General Motors Corporation
Shi-Wai S. Cheng
F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information
Patent Grant
Apparatus and method for lessening the accumulation of high boiling...
Patent number
6,837,201
Issue date
Jan 4, 2005
General Motors Corporation
Shi-Wai S. Cheng
F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information
Patent Grant
Open end diesel particulate trap
Patent number
6,835,224
Issue date
Dec 28, 2004
General Motors Corporation
Shi-Wai S. Cheng
Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
Information
Patent Grant
Rolling regeneration diesel particulate trap
Patent number
6,770,252
Issue date
Aug 3, 2004
General Motors Corporation
Shi-Wai S. Cheng
Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information
Patent Grant
Method and apparatus for filtering exhaust particulates
Patent number
6,764,532
Issue date
Jul 20, 2004
General Motors Corporation
Shi-Wai S. Cheng
Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
Information
Patent Grant
Apparatus for torch jet assisted spark ignition
Patent number
4,924,829
Issue date
May 15, 1990
General Motors Corporation
Shi-wai S. Cheng
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Patents Applications
last 30 patents
Information
Patent Application
METHOD AND APPARATUS FOR MONITORING A HYDROCARBON-SELECTIVE CATALYT...
Publication number
20110072790
Publication date
Mar 31, 2011
GM Global Technology Operations, Inc.
Steven J. Schmieg
F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information
Patent Application
METHOD AND APPARATUS FOR EXHAUST AFTERTREATMENT OF AN INTERNAL COMB...
Publication number
20110041482
Publication date
Feb 24, 2011
GM Global Technology Operations, Inc.
Shi-Wai S. Cheng
F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information
Patent Application
METHOD TO MONITOR HC-SCR CATALYST NOX REDUCTION PERFORMANCE FOR LEA...
Publication number
20100307140
Publication date
Dec 9, 2010
GM Global Technology Operations, Inc.
Michael B. Viola
F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information
Patent Application
Intake valve for lessening accumulation of high boiling fraction fr...
Publication number
20090095247
Publication date
Apr 16, 2009
GM Global Technology Operations, Inc.
Shi-Wai S. Cheng
F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information
Patent Application
EXHAUST PARTICULATE FILTER
Publication number
20070266701
Publication date
Nov 22, 2007
GM Global Technology Operations, Inc.
Shi-Wai S. Cheng
F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information
Patent Application
Apparatus for sensing particulates in a gas flow stream
Publication number
20070163233
Publication date
Jul 19, 2007
Shi-Wai S. Cheng
F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information
Patent Application
Exhaust particulate filter
Publication number
20070044458
Publication date
Mar 1, 2007
Shi-Wai S. Cheng
F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information
Patent Application
Method and apparatus for filtering exhaust particulates
Publication number
20060156702
Publication date
Jul 20, 2006
Shi-Wai S. Cheng
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Application
Reductant distributor for lean NOx trap
Publication number
20060123771
Publication date
Jun 15, 2006
Shi-Wai S. Cheng
F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information
Patent Application
APPARATUS AND METHOD FOR LESSENING THE ACCUMULATION OF HIGH BOILING...
Publication number
20050087164
Publication date
Apr 28, 2005
Shi-Wai S. Cheng
F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information
Patent Application
Method and apparatus for filtering exhaust particulates
Publication number
20050050870
Publication date
Mar 10, 2005
Shi-Wai S. Cheng
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Application
Rolling regeneration diesel particulate trap
Publication number
20040166041
Publication date
Aug 26, 2004
GENERAL MOTORS CORPORATION
Shi-Wai S. Cheng
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Application
Open end diesel particulate trap
Publication number
20040128964
Publication date
Jul 8, 2004
Shi-Wai S. Cheng
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Application
Rolling regeneration diesel particulate trap
Publication number
20030095904
Publication date
May 22, 2003
Shi-Wai S. Cheng
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL