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WOOJIN IND SYSTEMS CO LTD

Overview
  • Total Patents
    62
  • GoodIP Patent Rank
    98,846
  • Filing trend
    ⇧ 25.0%
About

WOOJIN IND SYSTEMS CO LTD has a total of 62 patent applications. It increased the IP activity by 25.0%. Its first patent ever was published in 1996. It filed its patents most often in Republic of Korea, China and EPO (European Patent Office). Its main competitors in its focus markets transport, environmental technology and electrical machinery and energy are EMORI AKIHIKO, OSSIACO INC and KURS ANDRE B.

Patent filings in countries

World map showing WOOJIN IND SYSTEMS CO LTDs patent filings in countries
# Country Total Patents
#1 Republic of Korea 51
#2 China 5
#3 EPO (European Patent Office) 3
#4 Japan 3

Patent filings per year

Chart showing WOOJIN IND SYSTEMS CO LTDs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Kwon Kyoung-Min 10
#2 Kim Tae-Suk 10
#3 Lee Eun-Kyu 10
#4 Lee Eun Kyu 8
#5 Kwon Kyoung Min 8
#6 Lee Kwang Seob 7
#7 Choi Je Ho 7
#8 Kim Tae Suk 7
#9 Kang Yong Sung 5
#10 Son Kyoung Min 4

Latest patents

Publication Filing date Title
KR20200063666A Fan control apparatus for power conversion device of a railway vehicle
KR20190137378A Structure of worm shaft for motor driven power steering system
KR20190111690A DC-DC Converter Control Method for Photovoltaic System in Stand-alone Power Generation System
KR20190109017A Energy Management System of Islanded Micro-Grid
KR20190063656A Power stack unit
KR20180127106A Energy Storage apparatus for AC High Speed Railway
KR20180117923A Peak load reduction apparatus for high speed railway
KR20180094645A Wireless power transmission apparatus with a voltage stabilizer module for railway vehicle
KR20180075880A Data managing apparatus of power converter for railway
KR101671704B1 Igbt switching test apparatus
KR20160064691A Apparatus for assaying mvb communication protocol of train
KR20160014894A Interleaved active harmonics filter
KR20150102403A Position detecting apparatus for magnetic levitation train using of a magnetic bar and rfid tag
KR20150102401A Position detecting apparatus for magnetic levitation train using of a magnetic bar
KR20150102400A Position detecting apparatus for magnetic levitation train using of a marker
KR101485355B1 Apparatus for analyzing characteristics of lsm
KR20150061359A Three-dimensional shape measurement device of train wheels
KR101357202B1 Infrared apparatus to detect the cloumns of the lower part of the rail vehicle
KR101312509B1 Sensing device of fake axles of overloaded vehicl
KR20140078309A Yaw control system of wind turbine and the method