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YOO CHANG VALVE CO LTD

Overview
  • Total Patents
    14
About

YOO CHANG VALVE CO LTD has a total of 14 patent applications. Its first patent ever was published in 1999. It filed its patents most often in Republic of Korea. Its main competitors in its focus markets mechanical elements, electrical machinery and energy and machines are DILO GES DREXLER & CO, KRAUSZ ELIEZER IND DEV LTD and MOL GUMMIVERARBEITUNG.

Patent filings in countries

World map showing YOO CHANG VALVE CO LTDs patent filings in countries
# Country Total Patents
#1 Republic of Korea 14

Patent filings per year

Chart showing YOO CHANG VALVE CO LTDs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 An Chang Yup 6
#2 Yoo Seung Cheol 4
#3 Yoo Seung Chul 3
#4 An Chang Yeub 1
#5 Min Kyung Soo 1
#6 Park Sang Bong 1

Latest patents

Publication Filing date Title
KR100816717B1 Expansion/contraction joint apparatus for insulated double pipe landfill type
KR100816715B1 Expansion/contraction joint apparatus for insulated double pipe landfill type
KR100816716B1 Expansion/contraction joint apparatus for insulated double pipe landfill type
KR100824231B1 Joint apparus for drinking water pipe
KR100786570B1 Packing cylinder and thereof expansion contraction joint
KR100786569B1 Joint apparatus for drinking water pipe
KR20080010487A Packing cylinder for expansion contraction joint apparatus
KR20070087926A Expansion/contraction joint for pre insulated piping
KR20050015735A Slip joint device
KR20050014431A Slip joint apparatus for use of removal fluid pressure
KR20040073067A Expansion/contraction joint apparatus for Pre insulated piping
KR20030009650A Coupling ball joint
KR20010061310A A ball joint of pack-cage type
KR20010011954A A joint apparatus of a slip/ball multi type