Inventor

Chi Kwan Lee

Inventor

Hong Kong, CN

Overview

2010–2020

Patent span

Electricity

Primary field (CPC H)

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

H02Jprimary

H02JElectric power networks24%

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 systems18%

G01RMeasuring electric variables12%

B60LPropulsion of electrically-propelled vehicles6%

G01NInvestigating or analysing materials by determining their chemical or physical properties6%

H01FMagnets6%

H03HImpedance networks, e.g. resonant circuits6%

H05BElectric heating6%

Y02BClimate change mitigation technologies related to buildings, e.g. housing, house appliances or related end-user applications6%

Y02EReduction of greenhouse gas [ghg] emissions, related to energy generation, transmission or distribution6%

PatentTitleYear

Assembled from patent assignee/location history and declaration credentials.

2010Based in Galway, IE· patent location history

2012–2015Patents assigned to UNIV CITY HONG KONG (3)· patent assignee history

2012Patents assigned to HUI RON SHU YUEN (2)· patent assignee history

2012Patents assigned to LEE CHI KWAN (2)· patent assignee history

2012–2020Based in Hong Kong, CN· patent location history

2012Based in Tuen Mun, HK· patent location history

2019Patents assigned to UNIV HONG KONG (2)· patent assignee history

2019–2020Patents assigned to VERSITECH LTD (2)· patent assignee history

Assignee and location history derived from the patent record.

Assignees

Locations