Learn more

LEE HYUN CHANG

Overview
  • Total Patents
    77
  • GoodIP Patent Rank
    25,763
  • Filing trend
    ⇧ 275.0%
About

LEE HYUN CHANG has a total of 77 patent applications. It increased the IP activity by 275.0%. Its first patent ever was published in 2003. It filed its patents most often in Republic of Korea, United States and Australia. Its main competitors in its focus markets measurement, macromolecular chemistry and polymers and transport are TOPSPIN MEDICAL ISRAEL LTD, KURSAJ VIKTOR N and SAFTEC CO LTD.

Patent filings per year

Chart showing LEE HYUN CHANGs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Lee Hyun Chang 75
#2 Lee Hyun-Chang 2
#3 Kim Hag Tae 1
#4 Kim Young Zo 1

Latest patents

Publication Filing date Title
KR20210018166A Electric Field Energy harvesting and power line proximity sensing
WO2021015533A2 Tire composition
KR20210012864A Tire composition
KR20210016654A Apparatus and method for detecting the earth elakage under combined TN and TT earthing arrangement
KR20190088962A Conductive hydrophilic tire composition
KR20190050947A Apparatus and method for surveying power lines
KR20190078551A Conductive tire composition
KR20190112669A Safety enhanced apparatus and method for tracing the sheathed medium voltage cable
WO2019190170A1 Device and method for detecting high-voltage power distribution line path having improved stability
KR20200070528A The apparatus and method for detecting the evidence of electric power system where consumer breaches the contract
WO2019017568A1 Device and method for enhancing accuracy of detecting leakage current
KR20190009688A Apparatus and method for improving electrical leak detection accuracy
KR20190082519A Conductive hydrophilic tire composition
KR101977094B1 Conductive tire composition
KR20170007686A The apparatus and method to locate the leaking point efficiently under TN-C environment
WO2015076555A1 Mobile electric leakage detection device and method
SG10201710034YA Mobile electric leakage detection device and method
KR20160037375A The method and apparatus for identifying the power cable with time synchronized measuring function
KR20150059089A The method and apparatus for locating the udnePinpointing the earth leaking point under TN-C environment
KR20160002428A Pinpointing the earth leaking point under TN-C environment