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CHOI IN HOAN

Overview
  • Total Patents
    32
  • GoodIP Patent Rank
    119,473
  • Filing trend
    ⇧ 50.0%
About

CHOI IN HOAN has a total of 32 patent applications. It increased the IP activity by 50.0%. Its first patent ever was published in 2003. It filed its patents most often in Republic of Korea. Its main competitors in its focus markets civil engineering, mechanical elements and chemical engineering are ARNTYR OSCAR SVEN, AHLMANN ACO SEVERIN and LEE KYUNG U.

Patent filings in countries

World map showing CHOI IN HOANs patent filings in countries
# Country Total Patents
#1 Republic of Korea 32

Patent filings per year

Chart showing CHOI IN HOANs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Choi In Hoan 32
#2 Kim In Suk 1
#3 Moon Myung Sun 1
#4 I Jeong Hyeon 1
#5 Lee Jae Su 1
#6 Jeong Inn Suu 1

Latest patents

Publication Filing date Title
KR102110084B1 A Hinge aparatus for open and shut use manhole
KR102082086B1 A manhole lock aparatus for handle contract
KR102096211B1 A manhole lock aparatus for handle in a boby
KR102110072B1 A nonpower sand chamber Equipment shut out a stink
KR20190142063A A Hinge aparatus for open and shut use manhole and grating
KR101996173B1 A Grating for trench catched refuse and bad smell of prevention
KR20190094613A A Grating for trench prevented waste jam
KR101921821B1 A nonpower sand chamber Equipment adjusted rain of sewer pipe without stink
KR20180118492A A Grating for trench catched refuse and bad smell of prevention
KR20170118311A A screen apparatus of processing waste use for sewage pipe
KR20170098060A A nonpower sand chamber Equipment adjusted rain of sewer pipe without stink
KR20150130200A A flowrate prevent structure of sewer pipe
KR20150130199A A Stap gate method of a sewer pipe
KR20150088962A A Equipment of flowrate regulation and prevent sand inflow of sand chamber
KR20150078311A Equipment of flowrate regulation and prevent sand inflow of sand chamber
KR101395414B1 A manhole cover for multi-function
KR20150010529A A Manhole cover having multi-function Frame
KR20130013129A A dredging method including spim-dry and precipition for vacuum tanck
KR20130000243A A dredging robot of burpipe conduit for transfer car
KR20110139510A Lie-down type precipitation facility engineering method