Inventor · disambiguated record
David G. Hart
Also filed as: HART DAVID · HART DAVID G · HART DAVID GERALD
40 granted patents·6 pending applications·1,408 citations·filing 1976–2024
98Inventor score
Top patents by PatentIndex Score
46 records- 0197US7545285B2Load control unit in communication with a fixed network meter reading systemELSTER ELECTRICITY LLC·Filed 2006·Granted Jun 9, 2009·58 cites·19 claims
- 0295US6005759AMethod and system for monitoring and controlling an electrical distribution networkABB POWER T & D CO·Filed 1998·Granted Dec 21, 1999·370 cites·30 claims
- 0390US6466031B1Systems and methods for locating faults on a transmission line with multiple tapped loadsABB POWER AUTOMATION LTD·Filed 2000·Granted Oct 15, 2002·62 cites·45 claims
- 0490US5839093ASystem for locating faults and estimating fault resistance in distribution networks with tapped loadsABB TRANSMIT OY·Filed 1996·Granted Nov 17, 1998·117 cites·31 claims
- 0586US6667866B1Virtual ground following single-phase tripABB TECHNOLOGY AG·Filed 2000·Granted Dec 23, 2003·43 cites·18 claims
- 0685US5805395AHalf-cycle summation V/Hz relay for generator and transformer over-excitation protectionABB POWER T & D CO·Filed 1996·Granted Sep 8, 1998·71 cites·16 claims
- 0784US5832414AGenerator protection system and method of compensating for errors in phasor estimation due to oscillations in discrete Fourier transformABB POWER T & D CO·Filed 1997·Granted Nov 3, 1998·54 cites·15 claims
- 0883US5721689ASystem and method for phasor estimation and frequency tracking in digital protection systemsABB POWER T & D CO·Filed 1995·Granted Feb 24, 1998·57 cites·20 claims
- 0982US6584417B1Method and directional element for fault direction determination in a capacitance-compensated lineABB INC·Filed 1999·Granted Jun 24, 2003·54 cites·18 claims
- 1082US5671112ADigital integrator V/Hz relay for generator and transformer over-excitation protectionABB POWER T & D CO·Filed 1996·Granted Sep 23, 1997·53 cites·19 claims
- 1181US6687573B2Recloser and fuse coordination schemeABB TECHNOLOGY AG·Filed 2001·Granted Feb 3, 2004·32 cites·17 claims
- 1281US6453248B1High impedance fault detectionABB INC·Filed 1998·Granted Sep 17, 2002·57 cites·15 claims
- 1380US6466030B2Systems and methods for locating faults on a transmission line with a single tapped loadABB POWER AUTOMATION LTD·Filed 2000·Granted Oct 15, 2002·28 cites·41 claims
- 1480US6397156B1Impedance measurement system for power system transmission linesABB INC·Filed 1998·Granted May 28, 2002·54 cites·15 claims
- 1579US6510436B1System and method for clustering large lists into optimal segmentsIBM·Filed 2000·Granted Jan 21, 2003·26 cites·24 claims
- 1678US6185482B1System and method for rms overcurrent backup functionABB POWER T & D CO·Filed 1998·Granted Feb 6, 2001·52 cites·14 claims
- 1775US9833803B2Apparatus and method for sanitizingHART DAVID·Filed 2015·Granted Dec 5, 2017·2 cites·20 claims
- 1874US6778370B1Adaptive recloser/sectionalizerABB TECHNOLOGY AG·Filed 2001·Granted Aug 17, 2004·20 cites·12 claims
- 1974US6081768ADigital peak detectorABB POWER T & D CO·Filed 1997·Granted Jun 27, 2000·40 cites·14 claims
- 2072US8212432B2Safety interlocks for electricity meter control relaysHART DAVID G·Filed 2010·Granted Jul 3, 2012·3 cites·22 claims
- 2171US6735534B2One or all phases recloser controlABB TECHNOLOGY AG·Filed 2001·Granted May 11, 2004·13 cites·10 claims
- 2270US6173216B1Protective relay with improved, sub-window cosine filterABB POWER T & D CO·Filed 1998·Granted Jan 9, 2001·32 cites·6 claims
- 2369US6707655B2Adaptive protection for recloser controlABB TECHNOLOGY AG·Filed 2000·Granted Mar 16, 2004·14 cites·3 claims
- 2466US6760670B2Crossover fault classification for power lines with parallel circuitsABB POWER AUTOMATION LTD·Filed 2001·Granted Jul 6, 2004·13 cites·55 claims
- 2561US6867958B2Loop restoration scheme for distribution feedersABB TECHNOLOGY AG·Filed 2000·Granted Mar 15, 2005·10 cites·14 claims
- 2659US5832413AGenerator protection system and method for phasor estimation and frequency tracking during frequency rampingABB POWER T & D CO·Filed 1997·Granted Nov 3, 1998·24 cites·18 claims
- 2755US6738719B2Crossover fault classification for power lines with parallel circuitsABB POWER AUTOMATION LTD·Filed 2001·Granted May 18, 2004·7 cites·56 claims
- 2855US4542864ABrake device for coaxial reel tape recordersFAIRCHILD WESTON SYSTEMS INC·Filed 1982·Granted Sep 24, 1985·8 cites·3 claims
- 2954US6747373B1System and method for coordinated control of a switched power capacitor with an integrated resonance protection systemABB TECHNOLOGY AG·Filed 2001·Granted Jun 8, 2004·10 cites·20 claims
- 3048US6735533B2Only picked up phases recloser controlABB TECHNOLOGY AG·Filed 2001·Granted May 11, 2004·4 cites·13 claims
- 3147US8477794B2Multiple communications protocol routing in advanced metering infrastructure contextHART DAVID G·Filed 2009·Granted Jul 2, 2013·0 cites·16 claims
- 3246US12254023B2Power system model conversionQUANTA TECH LLC·Filed 2023·Granted Mar 18, 2025·0 cites·21 claims
- 3345US2025053709A1Inverter-Based Resource or Plant ModelingQUANTA TECH LLC·Filed 2024·Application pending·0 cites
- 3445US2024419860A1Data-Driven Single-Ended Traveling Wave-Based Protection of Distribution SystemsQUANTA TECH LLC·Filed 2023·Application pending·0 cites
- 3540US10059587B2Ozone generatorHART DAVID·Filed 2016·Granted Aug 28, 2018·0 cites·11 claims
- 3640US2004105204A1Adaptive protection for recloser controlABB TECHNOLOGY AG·Filed 2003·Application pending·0 cites
- 3738US6336059B1Reach-measurement method for distance relays and fault locators on series-compensated transmission lines using local informationABB POWER T & D CO·Filed 1998·Granted Jan 1, 2002·9 cites·21 claims
- 3838US2006155422A1Monitoring and control of field electrical power equipmentUY DAVID·Filed 2002·Application pending·0 cites
- 3937US6741943B2Crossover fault classification for power lines with parallel circuitsABB POWER AUTOMATION LTD·Filed 2001·Granted May 25, 2004·0 cites·53 claims
- 4037US6721670B2Crossover fault classification for power lines with parallel circuitsABB POWER AUTOMATION LTD·Filed 2001·Granted Apr 13, 2004·0 cites·36 claims
- 4136US6154687AModified cosine filtersABB POWER T & D CO·Filed 1998·Granted Nov 28, 2000·5 cites·19 claims
- 4236US4074192AKeyless unidirectional reset for cumulative demand registerSANGAMO ELECTRIC CO·Filed 1976·Granted Feb 14, 1978·4 cites·5 claims
- 4336US2003074146A1Crossover fault classification for power lines with parallel circuitsFiled 2001·Application pending·0 cites
- 4433US2003085715A1System and method for locating a fault on ungrounded and high-impedance grounded power systemsFiled 2001·Application pending·0 cites
- 4531US4489358ALight weight chassis and cabinet assembly for magnetic tape recorderFAIRCHILD WESTON SYSTEMS INC·Filed 1982·Granted Dec 18, 1984·0 cites·13 claims
- 4630US4177922AMotor driven reset mechanism for cumulative demand registerSANGAMO WESTON·Filed 1977·Granted Dec 11, 1979·2 cites·10 claims
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