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Ulrich Dumke
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Eppstein, DE
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Patents Grants
last 30 patents
Information
Patent Grant
Fuel cell system including diagnostic technique for unbalanced comp...
Patent number
9,331,350
Issue date
May 3, 2016
GM Global Technology Operations LLC
Oliver Maier
F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information
Patent Grant
Diagnostic system for unbalanced motor shafts for high speed compre...
Patent number
8,771,891
Issue date
Jul 8, 2014
GM Global Technology Operations LLC
Oliver Maier
F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information
Patent Grant
Humidity sensing device for use in fuel cell systems
Patent number
8,105,720
Issue date
Jan 31, 2012
GM Global Technologies LLC
Christian Koenig
G01 - MEASURING TESTING
Information
Patent Grant
Hydrogen purged motor for anode re-circulation blower
Patent number
6,830,842
Issue date
Dec 14, 2004
General Motors Corporation
James S. Siepierski
G11 - INFORMATION STORAGE
Patents Applications
last 30 patents
Information
Patent Application
FUEL CELL SYSTEM INCLUDING DIAGNOSTIC TECHNIQUE FOR UNBALANCED COMP...
Publication number
20140242491
Publication date
Aug 28, 2014
GM GLOBAL TECHNOLOGY OPERATIONS LLC
Oliver Maier
F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information
Patent Application
HUMIDITY SENSING DEVICE FOR USE IN FUEL CELL SYSTEMS
Publication number
20090136788
Publication date
May 28, 2009
Christian Koenig
Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information
Patent Application
CONTROL VALVE WITH ENHANCED INNER SURFACE
Publication number
20090004530
Publication date
Jan 1, 2009
Christian Koenig
Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information
Patent Application
DIAGNOSTIC SYSTEM FOR UNBALANCED MOTOR SHAFTS FOR HIGH SPEED COMPRE...
Publication number
20080044702
Publication date
Feb 21, 2008
GM Global Technology Operations, Inc.
Oliver Maier
F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information
Patent Application
Hydrogen purged motor for anode re-circulation blower
Publication number
20030077499
Publication date
Apr 24, 2003
James S. Siepierski
G02 - OPTICS