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David E. Perkins
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Austin, TX, US
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Patents Grants
last 30 patents
Information
Patent Grant
Systems and methods for providing backup energy to a load
Patent number
8,671,686
Issue date
Mar 18, 2014
Active Power, Inc.
Joseph F. Pinkerton
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Systems and methods for controlling humidity
Patent number
7,918,091
Issue date
Apr 5, 2011
Active Power, Inc.
David E Perkins
F24 - HEATING RANGES VENTILATING
Information
Patent Grant
Transient energy systems and methods for use of the same
Patent number
7,750,518
Issue date
Jul 6, 2010
Active Power, Inc.
David E. Perkins
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
Thermal storage unit and methods for using the same to heat a fluid
Patent number
7,693,402
Issue date
Apr 6, 2010
Active Power, Inc.
Robert S. Hudson
F28 - HEAT EXCHANGE IN GENERAL
Information
Patent Grant
Systems and methods for providing backup energy to a load
Patent number
7,681,395
Issue date
Mar 23, 2010
Joseph F Pinkerton
F24 - HEATING RANGES VENTILATING
Information
Patent Grant
Transient energy systems and methods for use of the same
Patent number
7,425,807
Issue date
Sep 16, 2008
Active Power, Inc.
David E Perkins
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
Systems and methods for providing backup energy to a load
Patent number
7,127,895
Issue date
Oct 31, 2006
Active Power, Inc.
Joseph F Pinkerton
F24 - HEATING RANGES VENTILATING
Information
Patent Grant
Thermal storage unit and methods for using the same to heat a fluid
Patent number
6,955,050
Issue date
Oct 18, 2005
Active Power, Inc.
David E. Perkins
F24 - HEATING RANGES VENTILATING
Information
Patent Grant
Integrated flywheel uninterruptible power supply system
Patent number
6,657,320
Issue date
Dec 2, 2003
Active Power, Inc.
James A. Andrews
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
Circuits and methods for preheating a rotor of a motor-generator de...
Patent number
6,642,682
Issue date
Nov 4, 2003
Active Power Inc.
David E. Perkins
G05 - CONTROLLING REGULATING
Information
Patent Grant
Cartridge armatures for electro-dynamic machines
Patent number
6,208,056
Issue date
Mar 27, 2001
Active Power, Inc.
David E. Perkins
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Patents Applications
last 30 patents
Information
Patent Application
SYSTEMS AND METHODS FOR PROVIDING BACKUP ENERGY TO A LOAD
Publication number
20110196542
Publication date
Aug 11, 2011
Joseph F. Pinkerton
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
TRANSIENT ENERGY SYSTEMS AND METHODS FOR USE OF THE SAME
Publication number
20100171366
Publication date
Jul 8, 2010
Active Power, Inc.
David E. Perkins
Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information
Patent Application
Systems and methods for providing resources such as cooling and sec...
Publication number
20070139883
Publication date
Jun 21, 2007
Joseph F. Pinkerton
H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information
Patent Application
Thermal storage unit and methods for using the same to head a fluid
Publication number
20070022754
Publication date
Feb 1, 2007
Active Power, Inc.
David E. Perkins
F24 - HEATING RANGES VENTILATING
Information
Patent Application
Systems and methods for providing backup energy to a load
Publication number
20070022755
Publication date
Feb 1, 2007
Active Power, Inc.
Joseph F. Pinkerton
F24 - HEATING RANGES VENTILATING
Information
Patent Application
Thermal storage unit and methods for using the same to heat a fluid
Publication number
20060107664
Publication date
May 25, 2006
Robert S. Hudson
F28 - HEAT EXCHANGE IN GENERAL
Information
Patent Application
Systems and methods for providing cooling in compressed air storage...
Publication number
20060059936
Publication date
Mar 23, 2006
Robert E. Radke
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Application
Systems and methods for providing cooling in compressed air storage...
Publication number
20060059937
Publication date
Mar 23, 2006
David E. Perkins
F05 - INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF...
Information
Patent Application
THERMAL STORAGE UNIT AND METHODS FOR USING THE SAME TO HEAT A FLUID
Publication number
20050150226
Publication date
Jul 14, 2005
David E. Perkins
F24 - HEATING RANGES VENTILATING
Information
Patent Application
Thermal storage unit and methods for using the same to heat a fluid
Publication number
20050126172
Publication date
Jun 16, 2005
Robert S. Hudson
F28 - HEAT EXCHANGE IN GENERAL
Information
Patent Application
Systems and methods for providing backup energy to a load
Publication number
20040148934
Publication date
Aug 5, 2004
Joseph F. Pinkerton
F24 - HEATING RANGES VENTILATING