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ROH SOON CHANG

Overview
  • Total Patents
    23
  • GoodIP Patent Rank
    171,078
  • Filing trend
    ⇩ 33.0%
About

ROH SOON CHANG has a total of 23 patent applications. It decreased the IP activity by 33.0%. Its first patent ever was published in 2006. It filed its patents most often in Republic of Korea, WIPO (World Intellectual Property Organization) and China. Its main competitors in its focus markets electrical machinery and energy, environmental technology and thermal processes are ESAKOV SERGEJ MIKHAILOVICH, GREENSPUR RENEWABLES LTD and ESAKOV SERGEJ MIKHAJLOVICH.

Patent filings per year

Chart showing ROH SOON CHANGs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Roh Soon Chang 23
#2 Lee Wang Bog 1

Latest patents

Publication Filing date Title
KR101905512B1 Permanent magnet single phase motor without starting device
KR101633014B1 Permanent Magnet Rotator with minimized Cogging torque and Permanent Magnet generator and motor
WO2016013837A1 Lspm synchronous motor winding method without need for induction starter device
WO2016006937A1 Permanent magnet rotating apparatus for minimizing cogging torque
KR20130028364A Step-up gear for minimum of talk reduction
KR20130000270A Cooling and heating system using induction heating device for low input energy
KR20120113857A Wind induction and wind concentration structure of rooftop
KR20120113325A Wind boiler with wind generator
KR20120109210A Cooling and heating system using induction heating device
KR20110118040A Induction heating device for low input energy
KR20110103637A Induction heating device using magnetic
KR20110103247A Rotor structure having low iron loss
KR20110100354A High-utility heating device using induction heating
KR20110038792A High-efficiency generator using wind
KR20110038750A High-efficiency alternator
KR20110036288A Generator for high-utility
KR20110002771A Generator for high-utility
KR20080028181A An electric boiler of reactio type