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LEE JEONG YEAN

Overview
  • Total Patents
    11
About

LEE JEONG YEAN has a total of 11 patent applications. Its first patent ever was published in 1997. It filed its patents most often in Republic of Korea. Its main competitors in its focus markets mechanical elements, chemical engineering and machine tools are DONG IN ENG CO LTD, GS HYDRO OY and JUNG WOO METAL IND CO LTD.

Patent filings in countries

World map showing LEE JEONG YEANs patent filings in countries
# Country Total Patents
#1 Republic of Korea 11

Patent filings per year

Chart showing LEE JEONG YEANs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Lee Jeong Yean 5
#2 Lee Do Yean 5
#3 Lee Jeong-Yean 1

Latest patents

Publication Filing date Title
KR20100064401A Up and down coupling for easying the joint and fix therof
KR20100010113A Up and down coupling for easying the joint and fix therof
KR20090066768A A projection forming device for pipe connection
KR20090066767A Coupling for connecting pipe
KR20090007813A Up and down coupling for easying the joint and fix therof
KR20030092733A Coupling manufactured by pressing for connecting manifold
KR20010018609A Method for securing piping to coupling
KR20010008929A Method of attaching pipe to coupling
KR100271936B1 Hot water circulating small boiler for freight car
KR100221982B1 Prefabricated container house
KR100202050B1 Coupling of hot and cold water pipe arrangement