Inventor
PAN ZHIGUO
US25 patents
⚠️ This page may combine multiple inventors who share the name “PAN ZHIGUO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
ABB SCHWEIZ AG
11 patentsUS10951080B2Mar 16, 2021
Windings for an electric machine
ABB SCHWEIZ AG8 citations79
US10903776B2Jan 26, 2021
Industrial electrical machine
ABB SCHWEIZ AG3 citations71
US11258264B2Feb 22, 2022
Photovoltaic string optimizer
ABB SCHWEIZ AG0 citations62
US10177633B2Jan 8, 2019
Multiphase fractional slot concentrated winding machine with end mounted detachable or integrated multiphase series converter circuit
ABB SCHWEIZ AG1 citations58
US9876456B2Jan 23, 2018
Brushless electrical machine
ABB SCHWEIZ AG1 citations51
US12212229B2Jan 28, 2025
Static transfer switch with controlled phase angle transfer
ABB SCHWEIZ AG0 citations50
US10748682B2Aug 18, 2020
Surge arrester system and circuit breaker system
ABB SCHWEIZ AG0 citations50
US10436204B2Oct 8, 2019
Fan assembly for cooling electric machine and electric machine incorporating same
ABB SCHWEIZ AG0 citations50
US10630222B2Apr 21, 2020
System having electrical machine and controller
ABB SCHWEIZ AG0 citations40
US10734834B2Aug 4, 2020
Static transfer switch with resonant turn-off
ABB SCHWEIZ AG0 citations39
US10483693B2Nov 19, 2019
Sliding contact assembly for accelerating relative separation speed between plug contacts and socket outlet contacts
ABB SCHWEIZ AG0 citations39
ABB TECHNOLOGY AG
6 patentsUS9614457B2Apr 4, 2017
Modular thyristor-based rectifier circuits
ABB TECHNOLOGY AG2 citations72
US9742331B2Aug 22, 2017
Doubly-fed, variable-speed, dual-voltage AC generation and distribution systems
ABB TECHNOLOGY AG6 citations71
US9385645B2Jul 5, 2016
Methods and systems for electrical DC generation
ABB TECHNOLOGY AG4 citations71
US9755538B2Sep 5, 2017
Active AC-link power converter
ABB TECHNOLOGY AG2 citations68
US10348168B2Jul 9, 2019
Inverter cell arrangement for brushless electrical machine
ABB TECHNOLOGY AG1 citations57
US9571022B2Feb 14, 2017
Electrical generator with integrated hybrid rectification system comprising active and passive rectifiers connected in series
ABB TECHNOLOGY AG1 citations50
DIRECT DRIVE SYSTEMS INC
4 patentsUS7710081B2May 4, 2010
Electromechanical energy conversion systems
DIRECT DRIVE SYSTEMS INC91 citations97
US7960948B2Jun 14, 2011
Electromechanical energy conversion systems
DIRECT DRIVE SYSTEMS INC33 citations92
US7573144B1Aug 11, 2009
Reconfigurable power system using multiple phase-set electric machines
DIRECT DRIVE SYSTEMS INC35 citations89
US7859212B2Dec 28, 2010
Electric drive system with redundancy
DIRECT DRIVE SYSTEMS INC13 citations81