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Jeffrey M. Powell
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Columbus, OH, US
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Patents Grants
last 30 patents
Information
Patent Grant
Transfer switch system with neutral current management
Patent number
7,932,635
Issue date
Apr 26, 2011
Liebert Corporation
Suratkal P. Shenoy
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
Wireless battery monitoring system and method
Patent number
7,598,880
Issue date
Oct 6, 2009
Liebert Corporation
Jeffrey M. Powell
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
UPS having a dual-use boost converter
Patent number
7,564,148
Issue date
Jul 21, 2009
Libert Corporation
Jeffrey Powell
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
Sensor module, system, and method for sensors in proximity to circu...
Patent number
7,511,229
Issue date
Mar 31, 2009
Liebert Corporation
Gerald R. Vlasak
G01 - MEASURING TESTING
Information
Patent Grant
System and method of mounting current transducers in proximity to c...
Patent number
7,477,501
Issue date
Jan 13, 2009
Liebert Corporation
Gregg J. Nelson
G01 - MEASURING TESTING
Information
Patent Grant
Apparatus and method for rapid fault detection and transfer in a ut...
Patent number
6,768,223
Issue date
Jul 27, 2004
Liebert Corporation
Jeffrey M. Powell
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
Uninterruptible power supply with energy conversion and enhancement
Patent number
4,719,550
Issue date
Jan 12, 1988
Liebert Corporation
Jeffrey M. Powell
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
UPS apparatus with control protocols
Patent number
4,709,318
Issue date
Nov 24, 1987
Liebert Corporation
Don A. Gephart
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
Power conditioning system and apparatus
Patent number
4,684,875
Issue date
Aug 4, 1987
Liebert Corporation
Jeffrey M. Powell
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
Power conditioning system and apparatus
Patent number
4,544,877
Issue date
Oct 1, 1985
Liebert Corporation
Jeffrey M. Powell
G05 - CONTROLLING REGULATING
Information
Patent Grant
Polyphase ferroresonant voltage stabilizer having input chokes with...
Patent number
4,305,033
Issue date
Dec 8, 1981
Liebert Corporation
Jeffrey M. Powell
G05 - CONTROLLING REGULATING
Information
Patent Grant
Three phase power circuit
Patent number
3,993,943
Issue date
Nov 23, 1976
Solid State Controls Inc.
David R. Bratton
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Patents Applications
last 30 patents
Information
Patent Application
HIGH EFFICIENCY ALTERNATIVE/RENEWABLE POWERED UPS SYSTEM
Publication number
20080278003
Publication date
Nov 13, 2008
LIEBERT CORPORATION
Jack H. Pouchet
Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information
Patent Application
TRANSFER SWITCH SYSTEM WITH NEUTRAL CURRENT MANAGEMENT
Publication number
20080265679
Publication date
Oct 30, 2008
LIEBERT CORPORATION
Suratkal P. SHENOY
Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
Information
Patent Application
System and method of mounting current transducers in proximity to c...
Publication number
20060274481
Publication date
Dec 7, 2006
Gregg J. Nelson
G01 - MEASURING TESTING
Information
Patent Application
Sensor module, system, and method for sensors in proximity to circu...
Publication number
20060274482
Publication date
Dec 7, 2006
Gerald R. Vlasak
G01 - MEASURING TESTING
Information
Patent Application
WIRELESS BATTERY MONITORING SYSTEM AND METHOD
Publication number
20060250233
Publication date
Nov 9, 2006
LIEBERT CORPORATION
Jeffrey M. POWELL
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
UPS HAVING A DUAL-USE BOOST CONVERTER
Publication number
20060175904
Publication date
Aug 10, 2006
LIEBERT CORPORATION
Jeffrey Powell
Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
Information
Patent Application
Apparatus and method for rapid fault detection and transfer in a ut...
Publication number
20020011752
Publication date
Jan 31, 2002
Jeffrey M. Powell
Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC