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Daniel P. Grenn
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Milford, MI, US
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Patents Grants
last 30 patents
Information
Patent Grant
Battery pack balancing systems and control logic for multi-pack ele...
Patent number
10,981,557
Issue date
Apr 20, 2021
GM Global Technology Operations LLC
Shaochun Ye
B60 - VEHICLES IN GENERAL
Information
Patent Grant
Method and apparatus for recharging an energy storage device on a v...
Patent number
10,124,679
Issue date
Nov 13, 2018
GM Global Technology Operations LLC
Andrew M. Zettel
B60 - VEHICLES IN GENERAL
Information
Patent Grant
Methods of operating contactors in high voltage circuits of vehicles
Patent number
10,106,042
Issue date
Oct 23, 2018
GM Global Technology Operations LLC
David J. Mifsud
B60 - VEHICLES IN GENERAL
Information
Patent Grant
Methods of determining the order of operating contactors in high vo...
Patent number
10,090,125
Issue date
Oct 2, 2018
GM Global Technology Operations LLC
David J. Mifsud
G01 - MEASURING TESTING
Information
Patent Grant
System and method for clearing a readiness bit when a control modul...
Patent number
9,830,751
Issue date
Nov 28, 2017
GM Global Technology Operations LLC
Daniel P. Grenn
G05 - CONTROLLING REGULATING
Information
Patent Grant
Detection diagnostic for communication loss between a battery syste...
Patent number
9,612,289
Issue date
Apr 4, 2017
GM Global Technology Operations LLC
Voytek A. Novak
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
System and method for controlling heating modes for hybrid electric...
Patent number
9,533,549
Issue date
Jan 3, 2017
GM Global Technology Operations LLC
Kathy D. Rose
B60 - VEHICLES IN GENERAL
Information
Patent Grant
System and method of monitoring a performance level of a battery
Patent number
9,428,073
Issue date
Aug 30, 2016
GM Global Technology Operations LLC
Andrew C. Baughman
B60 - VEHICLES IN GENERAL
Information
Patent Grant
System and method for determining battery capacity in an electric v...
Patent number
9,283,947
Issue date
Mar 15, 2016
GM Global Technology Operations LLC
Joseph Bisbing
B60 - VEHICLES IN GENERAL
Information
Patent Grant
Method and system for isolating voltage sensor and contactor faults...
Patent number
9,217,765
Issue date
Dec 22, 2015
GM Global Technology Operations LLC
Walter M. Lazar
B60 - VEHICLES IN GENERAL
Information
Patent Grant
Vehicle location and fault diagnostic systems and methods
Patent number
9,047,722
Issue date
Jun 2, 2015
GM Global Technology Operations LLC
Jeanette C. Kurnik
G07 - CHECKING-DEVICES
Information
Patent Grant
Diagnostics for smart sensors of vehicles
Patent number
8,838,330
Issue date
Sep 16, 2014
GM Global Technology Operations LLC
Jeffrey S. Richards
B60 - VEHICLES IN GENERAL
Information
Patent Grant
DC converter diagnostics for vehicles
Patent number
8,688,318
Issue date
Apr 1, 2014
GM Global Technologies Operations LLC
Jeffrey S. Richards
Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information
Patent Grant
Control system and method for sensor signal out of range detection
Patent number
8,670,894
Issue date
Mar 11, 2014
GM Global Technology Operations LLC
Wenbo Wang
G01 - MEASURING TESTING
Information
Patent Grant
Distributed diagnostics architecture
Patent number
8,600,605
Issue date
Dec 3, 2013
GM Global Technology Operations LLC
Daniel P. Grenn
B60 - VEHICLES IN GENERAL
Information
Patent Grant
Control system and method for filtering dependent diagnostic troubl...
Patent number
8,055,400
Issue date
Nov 8, 2011
GM Global Technology Operations LLC
Daniel P. Grenn
G05 - CONTROLLING REGULATING
Information
Patent Grant
Securing and diagnosing the vehicle speed input and direction for t...
Patent number
8,041,478
Issue date
Oct 18, 2011
GM Global Technology Operations LLC
Joseph M. Stempnik
B60 - VEHICLES IN GENERAL
Information
Patent Grant
Diagnostic system for spark ignition direct injection system contro...
Patent number
7,826,963
Issue date
Nov 2, 2010
GM Global Technology Operations, Inc.
Wenbo Wang
Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information
Patent Grant
Telematic service system and method
Patent number
7,359,774
Issue date
Apr 15, 2008
General Motors Corproation
Daniel P. Grenn
G07 - CHECKING-DEVICES
Information
Patent Grant
Apparatus and methods for protecting a catalytic converter from mis...
Patent number
7,069,911
Issue date
Jul 4, 2006
General Motors Corporation
Ronald Joseph Kubani
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information
Patent Grant
Ignition-off timer diagnostic
Patent number
6,531,872
Issue date
Mar 11, 2003
General Motors Corporation
Mark D. Carr
Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information
Patent Grant
Oxygen sensor heater service bay test
Patent number
6,386,021
Issue date
May 14, 2002
General Motors Corporation
Mark D. Carr
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information
Patent Grant
Misfire detection in internal combustion engines
Patent number
5,345,817
Issue date
Sep 13, 1994
General Motors Corporation
Daniel P. Grenn
G01 - MEASURING TESTING
Information
Patent Grant
Engine with spark ignition operation through the oil pressure switc...
Patent number
4,768,480
Issue date
Sep 6, 1988
General Motors Corporation
Daniel P. Grenn
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Patents Applications
last 30 patents
Information
Patent Application
BATTERY PACK BALANCING SYSTEMS AND CONTROL LOGIC FOR MULTI-PACK ELE...
Publication number
20200223422
Publication date
Jul 16, 2020
GM GLOBAL TECHNOLOGY OPERATIONS LLC
Shaochun Ye
B60 - VEHICLES IN GENERAL
Information
Patent Application
METHODS OF DETERMINING THE ORDER OF OPERATING CONTACTORS IN HIGH VO...
Publication number
20170316905
Publication date
Nov 2, 2017
GM GLOBAL TECHNOLOGY OPERATIONS LLC
David J. Mifsud
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
SYSTEM AND METHOD FOR CLEARING A READINESS BIT WHEN A CONTROL MODUL...
Publication number
20170213398
Publication date
Jul 27, 2017
GM GLOBAL TECHNOLOGY OPERATIONS LLC
Daniel P. GRENN
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
METHODS OF OPERATING CONTACTORS IN HIGH VOLTAGE CIRCUITS OF VEHICLES
Publication number
20170144554
Publication date
May 25, 2017
GM GLOBAL TECHNOLOGY OPERATIONS LLC
David J. Mifsud
B60 - VEHICLES IN GENERAL
Information
Patent Application
METHOD AND APPARATUS FOR RECHARGING AN ENERGY STORAGE DEVICE ON A V...
Publication number
20170120762
Publication date
May 4, 2017
GM GLOBAL TECHNOLOGY OPERATIONS LLC
Andrew M. Zettel
B60 - VEHICLES IN GENERAL
Information
Patent Application
DETECTION DIAGNOSTIC FOR COMMUNICATION LOSS BETWEEN A BATTERY SYSTE...
Publication number
20150377975
Publication date
Dec 31, 2015
GM GLOBAL TECHNOLOGY OPERATIONS LLC
Voytek A. Novak
G01 - MEASURING TESTING
Information
Patent Application
SYSTEM AND METHOD FOR CONTROLLING HEATING MODES FOR HYBRID ELECTRI...
Publication number
20150283878
Publication date
Oct 8, 2015
GM GLOBAL TECHNOLOGY OPERATIONS LLC
KATHY D. ROSE
B60 - VEHICLES IN GENERAL
Information
Patent Application
SYSTEM AND METHOD OF MONITORING A PERFORMANCE LEVEL OF A BATTERY
Publication number
20150239364
Publication date
Aug 27, 2015
GM GLOBAL TECHNOLOGY OPERATIONS LLC
Andrew C. Baughman
B60 - VEHICLES IN GENERAL
Information
Patent Application
DRIVE MODE MODERATOR FOR A VEHICLE
Publication number
20150224979
Publication date
Aug 13, 2015
GM GLOBAL TECHNOLOGY OPERATIONS LLC
Daniel P. Grenn
B60 - VEHICLES IN GENERAL
Information
Patent Application
VEHICLE LOCATION AND FAULT DIAGNOSTIC SYSTEMS AND METHODS
Publication number
20150100199
Publication date
Apr 9, 2015
GM GLOBAL TECHNOLOGY OPERATIONS LLC
JEANETTE C. KURNIK
G07 - CHECKING-DEVICES
Information
Patent Application
METHOD AND SYSTEM FOR ISOLATING VOLTAGE SENSOR AND CONTACTOR FAULTS...
Publication number
20140046534
Publication date
Feb 13, 2014
GM GLOBAL TECHNOLOGY OPERATIONS LLC
Walter M. Lazar
B60 - VEHICLES IN GENERAL
Information
Patent Application
DC CONVERTER DIAGNOSTICS FOR VEHICLES
Publication number
20130261883
Publication date
Oct 3, 2013
GM GLOBAL TECHNOLOGY OPERATIONS LLC
JEFFREY S. RICHARDS
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information
Patent Application
DIAGNOSTICS FOR SMART SENSORS OF VEHICLES
Publication number
20130261884
Publication date
Oct 3, 2013
GM GLOBAL TECHNOLOGY OPERATIONS LLC
JEFFREY S. RICHARDS
B60 - VEHICLES IN GENERAL
Information
Patent Application
SYSTEM AND METHOD FOR DETERMINING BATTERY CAPACITY IN AN ELECTRIC V...
Publication number
20120256594
Publication date
Oct 11, 2012
GM GLOBAL TECHNOLOGY OPERATIONS LLC
Joseph BISBING
B60 - VEHICLES IN GENERAL
Information
Patent Application
DIAGNOSTIC SYSTEM FOR SPARK IGNITION DIRECT INJECTION SYSTEM CONTRO...
Publication number
20100269793
Publication date
Oct 28, 2010
GM Global Technology Operations, Inc.
Wenbo Wang
Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information
Patent Application
CONTROL SYSTEM AND METHOD FOR SENSOR SIGNAL OUT OF RANGE DETECTION
Publication number
20100274442
Publication date
Oct 28, 2010
GM Global Technology Operations, Inc.
Wenbo Wang
Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information
Patent Application
CONTROL SYSTEM AND METHOD FOR FILTERING DEPENDENT DIAGNOSTIC TROUBL...
Publication number
20090271062
Publication date
Oct 29, 2009
GM Global Technology Operations, Inc.
Daniel P. Grenn
G05 - CONTROLLING REGULATING
Information
Patent Application
SECURING AND DIAGNOSING THE VEHICLE SPEED INPUT AND DIRECTION FOR T...
Publication number
20090234534
Publication date
Sep 17, 2009
GM Global Technology Operations, Inc.
Joseph M. Stempnik
B60 - VEHICLES IN GENERAL
Information
Patent Application
ELECTRONIC CONTROL MODULE INTEGRATED DIAGNOSTIC FLIGHT RECORDER MET...
Publication number
20090187304
Publication date
Jul 23, 2009
GM Global Technology Operations, Inc.
Thomas G. Waypa
G07 - CHECKING-DEVICES
Information
Patent Application
VEHICLE DRIVE SYSTEM, POWER MANAGEMENT DEVICE, AND METHOD FOR MANAG...
Publication number
20080179119
Publication date
Jul 31, 2008
Daniel P. Grenn
B60 - VEHICLES IN GENERAL
Information
Patent Application
DISTRIBUTED DIAGNOSTICS ARCHITECTURE
Publication number
20070179691
Publication date
Aug 2, 2007
Daniel P. Grenn
B60 - VEHICLES IN GENERAL
Information
Patent Application
Telematic service system and method
Publication number
20060190148
Publication date
Aug 24, 2006
Daniel P. Grenn
G07 - CHECKING-DEVICES
Information
Patent Application
APPARATUS AND METHODS FOR PROTECTING A CATALYTIC CONVERTER FROM MIS...
Publication number
20060162700
Publication date
Jul 27, 2006
Ronald Joseph Kubani
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS