DH

David G. Hart

AA Abb Technology Ag: 11 patents #45 of 1,391Top 4%
AC Abb Power T&D Company: 11 patents #5 of 231Top 3%
AA Abb Power Automation: 6 patents #1 of 6Top 20%
FS Fairchild Weston Systems: 3 patents #1 of 16Top 7%
EE Elster Electricity: 2 patents #24 of 64Top 40%
IBM: 1 patents #44,794 of 70,183Top 65%
ES Elster Solutions: 1 patents #15 of 40Top 40%
QT Quanta Technology: 1 patents #4 of 6Top 70%
📍 Raleigh, NC: #153 of 6,378 inventorsTop 3%
🗺 North Carolina: #865 of 45,564 inventorsTop 2%
Overall (All Time): #81,056 of 4,157,543Top 2%
39
Patents All Time

Issued Patents All Time

Showing 1–25 of 39 patents

Patent #TitleCo-InventorsDate
12254023 Power system model conversion Hadi Khani 2025-03-18
10059587 Ozone generator 2018-08-28
9833803 Apparatus and method for sanitizing 2017-12-05
8477794 Multiple communications protocol routing in advanced metering infrastructure context Edward J. Beroset, Carl J. Laplace 2013-07-02
8212432 Safety interlocks for electricity meter control relays Charles H. Jones 2012-07-03
7545285 Load control unit in communication with a fixed network meter reading system Kenneth C. Shuey, Andrew J. Borleske, Robert T. Mason, Jr. 2009-06-09
6867958 Loop restoration scheme for distribution feeders Graeme N. McClure, Jeffrey L. McElray, Robert A. Smith, Carl J. Laplace, William Egolf 2005-03-15
6778370 Adaptive recloser/sectionalizer Carl J. Laplace, William Egolf 2004-08-17
6760670 Crossover fault classification for power lines with parallel circuits James Stoupis, David Lubkeman, Reto Buettner 2004-07-06
6747373 System and method for coordinated control of a switched power capacitor with an integrated resonance protection system Yi Hu, Luciano Di Maio, Fabio Gatelli, William Egolf 2004-06-08
6741943 Crossover fault classification for power lines with parallel circuits James Stoupis, David Lubkeman, Reto Buettner 2004-05-25
6738719 Crossover fault classification for power lines with parallel circuits James Stoupis, David Lubkeman, Reto Buettner 2004-05-18
6735533 Only picked up phases recloser control Graeme N. McClure, Carl J. Laplace, William Egolf 2004-05-11
6735534 One or all phases recloser control Graeme N. McClure, Carl J. Laplace, William Egolf 2004-05-11
6721670 Crossover fault classification for power lines with parallel circuits James Stoupis, David Lubkeman, Reto Buettner 2004-04-13
6707655 Adaptive protection for recloser control Jeffrey L. McElray, Carl J. Laplace, William Egolf, Graeme N. McClure 2004-03-16
6687573 Recloser and fuse coordination scheme William Egolf, Carl J. Laplace, Graeme N. McClure 2004-02-03
6667866 Virtual ground following single-phase trip Carl J. Laplace, William Egolf, Graeme N. McClure 2003-12-23
6584417 Method and directional element for fault direction determination in a capacitance-compensated line Yi Hu, Damir Novosel 2003-06-24
6510436 System and method for clustering large lists into optimal segments 2003-01-21
6466030 Systems and methods for locating faults on a transmission line with a single tapped load Yi Hu, David Lubkeman, Reto Buettner 2002-10-15
6466031 Systems and methods for locating faults on a transmission line with multiple tapped loads Yi Hu, David Lubkeman, Reto Buettner 2002-10-15
6453248 High impedance fault detection Damir Novosel, Steven A. Kunsman 2002-09-17
6397156 Impedance measurement system for power system transmission lines Bernhard Bachmann, Yi Hu, Damir Novosel, Murari Saha 2002-05-28
6336059 Reach-measurement method for distance relays and fault locators on series-compensated transmission lines using local information Damir Novosel, Bernhard Bachmann, Yi Hu, Murari Saha 2002-01-01