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David G. Hart
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Raleigh, NC, US
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Patents Grants
last 30 patents
Information
Patent Grant
Multiple communications protocol routing in advanced metering infra...
Patent number
8,477,794
Issue date
Jul 2, 2013
Elster Electricity, LLC
David G. Hart
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Safety interlocks for electricity meter control relays
Patent number
8,212,432
Issue date
Jul 3, 2012
Elster Solutions, LLC
David G. Hart
G01 - MEASURING TESTING
Information
Patent Grant
Load control unit in communication with a fixed network meter readi...
Patent number
7,545,285
Issue date
Jun 9, 2009
Elster Electricity, LLC
Kenneth C. Shuey
G01 - MEASURING TESTING
Information
Patent Grant
Loop restoration scheme for distribution feeders
Patent number
6,867,958
Issue date
Mar 15, 2005
ABB Technology AG
Graeme N. McClure
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
Adaptive recloser/sectionalizer
Patent number
6,778,370
Issue date
Aug 17, 2004
ABB Technology AG
Carl J. LaPlace
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
Crossover fault classification for power lines with parallel circuits
Patent number
6,760,670
Issue date
Jul 6, 2004
ABB Power Automation Ltd.
James D. Stoupis
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
System and method for coordinated control of a switched power capac...
Patent number
6,747,373
Issue date
Jun 8, 2004
ABB Technology AG
Yi Hu
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
Crossover fault classification for power lines with parallel circuits
Patent number
6,741,943
Issue date
May 25, 2004
ABB Power Automation Ltd.
James D. Stoupis
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
Crossover fault classification for power lines with parallel circuits
Patent number
6,738,719
Issue date
May 18, 2004
ABB Power Automation Ltd.
James D. Stoupis
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
One or all phases recloser control
Patent number
6,735,534
Issue date
May 11, 2004
ABB Technology AG
Graeme N. McClure
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
Only picked up phases recloser control
Patent number
6,735,533
Issue date
May 11, 2004
ABB Technology AG
Graeme N. McClure
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
Crossover fault classification for power lines with parallel circuits
Patent number
6,721,670
Issue date
Apr 13, 2004
ABB Power Automation Ltd.
James D. Stoupis
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
Adaptive protection for recloser control
Patent number
6,707,655
Issue date
Mar 16, 2004
ABB Technology AG
Jeffrey L. McElray
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
Recloser and fuse coordination scheme
Patent number
6,687,573
Issue date
Feb 3, 2004
ABB Technology AG
William M. Egolf
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
Virtual ground following single-phase trip
Patent number
6,667,866
Issue date
Dec 23, 2003
ABB Technology AG
Carl J. LaPlace
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
Method and directional element for fault direction determination in...
Patent number
6,584,417
Issue date
Jun 24, 2003
ABB Inc.
Yi Hu
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
Systems and methods for locating faults on a transmission line with...
Patent number
6,466,030
Issue date
Oct 15, 2002
ABB Power Automation Ltd.
Yi Hu
G01 - MEASURING TESTING
Information
Patent Grant
Systems and methods for locating faults on a transmission line with...
Patent number
6,466,031
Issue date
Oct 15, 2002
ABB Power Automation Ltd.
Yi Hu
G01 - MEASURING TESTING
Information
Patent Grant
High impedance fault detection
Patent number
6,453,248
Issue date
Sep 17, 2002
ABB Inc.
David G. Hart
G01 - MEASURING TESTING
Information
Patent Grant
Impedance measurement system for power system transmission lines
Patent number
6,397,156
Issue date
May 28, 2002
ABB Inc.
Bernhard Bachmann
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
Reach-measurement method for distance relays and fault locators on...
Patent number
6,336,059
Issue date
Jan 1, 2002
ABB Power T&D Company Inc.
Damir Novosel
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
System and method for rms overcurrent backup function
Patent number
6,185,482
Issue date
Feb 6, 2001
ABB Power T&D Company Inc.
Michael Egolf
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
Protective relay with improved, sub-window cosine filter
Patent number
6,173,216
Issue date
Jan 9, 2001
ABB Power T&D Company Inc.
Khoi Vu
G01 - MEASURING TESTING
Information
Patent Grant
Modified cosine filters
Patent number
6,154,687
Issue date
Nov 28, 2000
ABB Power T&D Company Inc.
David G. Hart
G01 - MEASURING TESTING
Information
Patent Grant
Digital peak detector
Patent number
6,081,768
Issue date
Jun 27, 2000
ABB Power T&D Company Inc.
Yi Hu
G01 - MEASURING TESTING
Information
Patent Grant
Method and system for monitoring and controlling an electrical dist...
Patent number
6,005,759
Issue date
Dec 21, 1999
ABB Power T&D Company Inc.
David G. Hart
G01 - MEASURING TESTING
Information
Patent Grant
System for locating faults and estimating fault resistance in distr...
Patent number
5,839,093
Issue date
Nov 17, 1998
ABB Transmit Oy
Damir Novosel
G01 - MEASURING TESTING
Information
Patent Grant
Generator protection system and method for phasor estimation and fr...
Patent number
5,832,413
Issue date
Nov 3, 1998
ABB Power T&D Company Inc.
Joseph P. Benco
G01 - MEASURING TESTING
Information
Patent Grant
Generator protection system and method of compensating for errors i...
Patent number
5,832,414
Issue date
Nov 3, 1998
ABB Power T&D Company Inc.
David G. Hart
G01 - MEASURING TESTING
Information
Patent Grant
Half-cycle summation V/Hz relay for generator and transformer over-...
Patent number
5,805,395
Issue date
Sep 8, 1998
ABB Power T&D Company Inc.
Yi Hu
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Patents Applications
last 30 patents
Information
Patent Application
SAFETY INTERLOCKS FOR ELECTRICITY METER CONTROL RELAYS
Publication number
20110187206
Publication date
Aug 4, 2011
Elster Solutions, LLC
David G. Hart
Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information
Patent Application
Multiple Communications Protocol Routing In Advanced Metering Infra...
Publication number
20100278187
Publication date
Nov 4, 2010
Elster Electricity, LLC
David G. Hart
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Load control unit in communication with a fixed network meter readi...
Publication number
20070205915
Publication date
Sep 6, 2007
Elster Electricty, LLC
Kenneth C. Shuey
Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information
Patent Application
Monitoring and control of field electrical power equipment
Publication number
20060155422
Publication date
Jul 13, 2006
David Uy
G05 - CONTROLLING REGULATING
Information
Patent Application
Adaptive protection for recloser control
Publication number
20040105204
Publication date
Jun 3, 2004
ABB Technology AG
Jeffrey L. McElray
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Application
System and method for locating a fault on ungrounded and high-imped...
Publication number
20030085715
Publication date
May 8, 2003
David Lubkeman
G01 - MEASURING TESTING
Information
Patent Application
Crossover fault classification for power lines with parallel circuits
Publication number
20030086222
Publication date
May 8, 2003
James D. Stoupis
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Application
Crossover fault classification for power lines with parallel circuits
Publication number
20030081364
Publication date
May 1, 2003
James D. Stoupis
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Application
Crossover fault classification for power lines with parallel circuits
Publication number
20030074146
Publication date
Apr 17, 2003
James D. Stoupis
G01 - MEASURING TESTING
Information
Patent Application
Crossover fault classification for power lines with parallel circuits
Publication number
20030060991
Publication date
Mar 27, 2003
James D. Stoupis
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Application
Crossover fault classification for power lines with parallel circuits
Publication number
20030055585
Publication date
Mar 20, 2003
James D. Stoupis
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Application
SYSTEMS AND METHODS FOR LOCATING FAULTS ON A TRANSMISSION LINE WITH...
Publication number
20020149375
Publication date
Oct 17, 2002
Yi Hu
G01 - MEASURING TESTING
Information
Patent Application
One or all phases recloser control
Publication number
20020133304
Publication date
Sep 19, 2002
Graeme N. McClure
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Application
Only picked up phases recloser control
Publication number
20020131222
Publication date
Sep 19, 2002
Graeme N. McClure
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Application
Systems and methods for locating faults on a transmission line with...
Publication number
20020121903
Publication date
Sep 5, 2002
Yi Hu
G01 - MEASURING TESTING
Information
Patent Application
Adaptive protection for recloser control
Publication number
20020080540
Publication date
Jun 27, 2002
Jeffrey L. McElray
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Application
Loop restoration scheme for distribution feeders
Publication number
20020080539
Publication date
Jun 27, 2002
Graeme N. McClure
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Application
Recloser coordination scheme
Publication number
20010034568
Publication date
Oct 25, 2001
William M. Egolf
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER