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James D. Ethington
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Swartz Creek, MI, US
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last 30 patents
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Patent Grant
Purge valve leak diagnostic systems and methods
Patent number
8,122,758
Issue date
Feb 28, 2012
GM Global Technology Operations LLC
Zhong Wang
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Patents Applications
last 30 patents
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Patent Application
PURGE VALVE LEAK DIAGNOSTIC SYSTEMS AND METHODS
Publication number
20090211340
Publication date
Aug 27, 2009
GM Global Technology Operations, Inc.
Zhong Wang
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS