Inventor

David Dewei Xu

Inventor

Pickering, CA

Overview

5→

Patents

2013–2017

Patent span

Electricity

Primary field (CPC H)

Patents· 5 as inventor

Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.

H02Mprimary

H02MApparatus for conversion between ac and ac, between ac and dc, or between dc and dc, and for use with mains or similar power supply systems38%

H02JElectric power networks23%

Y02EReduction of greenhouse gas [ghg] emissions, related to energy generation, transmission or distribution15%

F05BIndexing scheme relating to wind, spring, weight, inertia or like motors, to machines or engines for liquids covered by subclasses f03b, f03d and f03g8%

H01FMagnets8%

H02PControl or regulation of electric motors, electric generators or dynamo-electric converters8%

PatentTitleYear

9,559,541'Modular multilevel converter and charging circuit therefor'2017 9,520,800'Multilevel converter systems and methods with reduced common mode voltage'2016 8,698,335'Low cost current source converters for power generation application'2014 8,653,931'Multi-phase power converters and integrated choke therfor'2014 8,587,160'Grid fault ride-through for current source converter-based wind energy conversion systems'2013

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2013–2017Patents assigned to ROCKWELL AUTOMATION TECH INC (5)· patent assignee history

2013–2017Patents assigned to WU BIN (5)· patent assignee history

2013–2017Patents assigned to XU DAVID DEWEI (5)· patent assignee history

2013–2014Patents assigned to DAI JINGYA (2)· patent assignee history

2013–2017Based in Pickering, CA· patent location history

2016–2017Patents assigned to CHENG ZHONGYUAN (2)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
ROCKWELL AUTOMATION TECH INC	5	2013–2017
WU BIN	5	2013–2017
XU DAVID DEWEIself	5	2013–2017
CHENG ZHONGYUAN	2	2016–2017
DAI JINGYA	2	2013–2014

Locations

Location	Patents	Span
Pickering, CA	5	2013–2017