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Ronald J. Herrin
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Clawson, MI, US
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Patents Grants
last 30 patents
Information
Patent Grant
System and method for estimating indicated mean effective pressure...
Patent number
8,532,908
Issue date
Sep 10, 2013
GM Global Technology Operations LLC
Jeffrey A. Morgan
G01 - MEASURING TESTING
Information
Patent Grant
High overlap camshaft for improved engine efficiency
Patent number
7,530,337
Issue date
May 12, 2009
GM Global Technology Operations, Inc.
Richard Stephen Davis
B60 - VEHICLES IN GENERAL
Information
Patent Grant
Method for balancing engine cylinder bank output using crankshaft s...
Patent number
6,843,214
Issue date
Jan 18, 2005
General Motors Corporation
Ronald J. Herrin
Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information
Patent Grant
Cylinder bank work output balancing based on exhaust gas A/F ratio
Patent number
6,837,231
Issue date
Jan 4, 2005
General Motors Corporation
Ronald J. Herrin
Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information
Patent Grant
Hydraulic valve lifter
Patent number
4,223,648
Issue date
Sep 23, 1980
General Motors Corporation
Donald J. Pozniak
F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information
Patent Grant
Engine with variable valve overlap
Patent number
4,054,109
Issue date
Oct 18, 1977
General Motors Corporation
Ronald J. Herrin
F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Patents Applications
last 30 patents
Information
Patent Application
System And Method For Controlling Spark Timing Based On A Duration...
Publication number
20160258410
Publication date
Sep 8, 2016
GM GLOBAL TECHNOLOGY OPERATIONS LLC
Gary Robert Cygan
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information
Patent Application
Fifty Percent Burn Crankshaft Angle Estimation Systems And Methods
Publication number
20160258380
Publication date
Sep 8, 2016
GM GLOBAL TECHNOLOGY OPERATIONS LLC
Gary Robert Cygan
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information
Patent Application
SYSTEM AND METHOD FOR ESTIMATING INDICATED MEAN EFFECTIVE PRESSURE...
Publication number
20120310505
Publication date
Dec 6, 2012
GM GLOBAL TECHNOLOGY OPERATIONS LLC
Jeffrey A. Morgan
G01 - MEASURING TESTING
Information
Patent Application
CYLINDER BANK WORK OUTPUT BALANCING BASED ON EXHAUST GAS A/F RATIO
Publication number
20050005923
Publication date
Jan 13, 2005
Ronald J. Herrin
Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...