DD

Doug D. Deng

Ford: 10 patents #1,793 of 17,473Top 15%
BS Ballard Power Systems: 4 patents #55 of 467Top 15%
EL Ecostar Electric Drive Systems L.L.C.: 1 patents #2 of 12Top 20%
Overall (All Time): #327,286 of 4,157,543Top 8%
15
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
6919650 Hybrid synchronization phase angle generation method 2005-07-19
6714424 Dead-time compensation with narrow pulse elimination in solid- state switch devices Kon-King M. Wang, Steven J. Kowalec 2004-03-30
6603672 Power converter system Dumitru Raceu, Kent M. Harmon 2003-08-05
6583996 Method and system for detecting a negative sequence for three phase grid-connected inverter systems Kon-King M. Wang 2003-06-24
6362988 System and method for synchronizing the phase angle for an AC power source in parallel operation with a grid Mukunda V. Prema 2002-03-26
6246343 Increment encoder failure detection Kenneth James Farkas 2001-06-12
6239997 System for connecting and synchronizing a supplemental power source to a power grid 2001-05-29
6178103 Method and circuit for synchronizing parallel voltage source inverters Kon-King M. Wang, Vijay Bhavaraju 2001-01-23
6169679 Method and system for synchronizing the phase angles of parallel connected inverters Kon-King M. Wang 2001-01-02
6047787 Voltage control method for an electric motor control system Christos Kambouris, Kent M. Harmon 2000-04-11
5994859 Torsional oscillation compensation in the drivetrain of a motor vehicle Jack Xu, Mukunda V. Prema 1999-11-30
5821720 Backlash elimination in the drivetrain of an electric vehicle Jack Xu, Kenneth James Farkas 1998-10-13
5739664 Induction motor drive controller Xingyi Xu 1998-04-14
5627446 Induction motor control method Xingyi Xu 1997-05-06
5552977 Three phase inverter circuit with improved transition from SVPWM to six step operation Xingyi Xu 1996-09-03