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LEE CHANG HAK

Overview
  • Total Patents
    17
  • GoodIP Patent Rank
    223,008
About

LEE CHANG HAK has a total of 17 patent applications. Its first patent ever was published in 1985. It filed its patents most often in Republic of Korea. Its main competitors in its focus markets thermal processes, environmental technology and electrical machinery and energy are WINDHAGER OHG ANTON, GERDES OHG and Wuhan haier water heater co ltd.

Patent filings in countries

World map showing LEE CHANG HAKs patent filings in countries
# Country Total Patents
#1 Republic of Korea 17

Patent filings per year

Chart showing LEE CHANG HAKs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Lee Chang Hak 11
#2 Lee Chang-Hak 5
#3 Ko Woo-Jong 1
#4 Lee Chang-Hakk 1
#5 Kim Sung Chul 1
#6 Ku Ja Kwang 1
#7 Tsurusima Katsuaki 1

Latest patents

Publication Filing date Title
KR101913068B1 Earthquake-proof structure for switchgear
KR101451779B1 Fluid storage facilities comprising function of water level measurement and multi blocking by wireless network and fluid providing system of the same
KR20100072434A Solid fuel and electricity combined use boiler
KR100877287B1 The fuel storage formula boiler which had an explosion prevention function
KR100865031B1 Fuel save boiler for water overflow
KR20090012539A Head socket for contacting probe card and wafer test apparatus
KR100758115B1 Fuel save boiler
KR20060089183A Fuel save boiler
KR20060089180A Fuel save all discipline
KR20020032252A Burning device of fuel for heating
KR100263287B1 A carring cup
KR100198811B1 A trash burner
KR100245118B1 Burner recombustion apparatus
KR0164658B1 Forming method of an insulating material
KR960000662B1 Light metal pipes
KR950014192B1 A collecting apparatus