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Jeffry A. Helmick
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Oxford, MI, US
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Patents Grants
last 30 patents
Information
Patent Grant
Diagnostic system and method for an oxygen sensor positioned downst...
Patent number
9,181,844
Issue date
Nov 10, 2015
GM Global Technology Operations LLC
Stephen Paul Levijoki
Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information
Patent Grant
Systems and methods for diagnosing oxygen sensors and catalytic con...
Patent number
8,583,349
Issue date
Nov 12, 2013
GM Global Technology Operations LLC
Igor Anilovich
Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information
Patent Grant
Post oxygen sensor performance diagnostic with minimum air flow
Patent number
8,086,392
Issue date
Dec 27, 2011
GM Global Technology Operations LLC
Igor Anilovich
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information
Patent Grant
Exhaust system monitoring methods and systems
Patent number
7,900,439
Issue date
Mar 8, 2011
GM Global Technology Operations, Inc.
Robert J. Genslak
Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information
Patent Grant
Current control method for an oxygen sensor heater
Patent number
6,586,711
Issue date
Jul 1, 2003
General Motors Corporation
Christopher E. Whitney
G01 - MEASURING TESTING
Patents Applications
last 30 patents
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Patent Application
NOX FORMATION PREDICTION FOR IMPROVED CATALYTIC CONVERTER CONTROL
Publication number
20200116093
Publication date
Apr 16, 2020
GM GLOBAL TECHNOLOGY OPERATIONS LLC
Jianyang Geng
F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information
Patent Application
OXYGEN SENSOR DIAGNOSTIC
Publication number
20200049091
Publication date
Feb 13, 2020
GM GLOBAL TECHNOLOGY OPERATIONS LLC
Junhong Dai
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information
Patent Application
DIAGNOSTIC SYSTEM AND METHOD FOR AN OXYGEN SENSOR POSITIONED DOWNST...
Publication number
20120317959
Publication date
Dec 20, 2012
GM GLOBAL TECHNOLOGY OPERATIONS LLC
Stephen Paul Levijoki
F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information
Patent Application
SYSTEMS AND METHODS FOR DIAGNOSING OXYGEN SENSORS AND CATALYTIC CON...
Publication number
20110106411
Publication date
May 5, 2011
GM Global Technology Operations, Inc.
Igor Anilovich
F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information
Patent Application
POST OXYGEN SENSOR PERFORMANCE DIAGNOSTIC WITH MINIMUM AIR FLOW
Publication number
20100242933
Publication date
Sep 30, 2010
GM Global Technology Operations, Inc.
Igor Anilovich
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information
Patent Application
Exhaust system monitoring methods and systems
Publication number
20080302087
Publication date
Dec 11, 2008
Robert J. Genslak
F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information
Patent Application
Current control method for an oxygen sensor heater
Publication number
20030019865
Publication date
Jan 30, 2003
Christopher E. Whitney
G01 - MEASURING TESTING