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OHK CO LTD

Overview
  • Total Patents
    29
  • GoodIP Patent Rank
    138,043
  • Filing trend
    ⇩ 25.0%
About

OHK CO LTD has a total of 29 patent applications. It decreased the IP activity by 25.0%. Its first patent ever was published in 2000. It filed its patents most often in Republic of Korea. Its main competitors in its focus markets environmental technology, chemical engineering and machine tools are JIANGSU BODA ENVIRONMENTAL PROT CO LTD, KOREA WATER TECHNOLOGY INC and CHAFFEE KEVIN R.

Patent filings in countries

World map showing OHK CO LTDs patent filings in countries
# Country Total Patents
#1 Republic of Korea 29

Patent filings per year

Chart showing OHK CO LTDs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Nam Yang Won 27
#2 Choi Gab Jin 5
#3 Byun Sang Cheol 4
#4 Choi I Song 2
#5 Kang Gye Myeong 2
#6 Oh Jong Min 2
#7 Seo Yong Deck 2
#8 Kwon Dong Sik 1
#9 Park Seong Kyu 1
#10 Kang Seong Wook 1

Latest patents

Publication Filing date Title
KR20190132175A Moving plates type sludge thickener and dehydrator
KR101910992B1 Moving plates type sludge thickener and dehydrator
KR20190006158A Sludge treatment device
KR20180090720A Centrifugal concentrator for sludge
KR101798649B1 High efficiency apparatus for dehydrating sludge connected by thickener
KR101823472B1 Sludge treatment device
KR101765109B1 Centrifugal concentrator for sludge
KR101446107B1 Sludge treatment device
KR101432269B1 U-shape moving plates type sludge treatment device having separable structure
KR20150127897A System for treating water from cbm well
KR101381436B1 Centrifural dehydration device for sludge
KR101398693B1 Concentrating and dewatering device for sludge
KR100958664B1 High efficiency apparatus for dehydrating sludge connected by thickener
KR101048641B1 Method for processing dredged soil, conteminated water and waste water, and processing system using the same
KR100968937B1 Soil firming agent
KR100963198B1 Moving-plates type sludge disposal device having variable spacers
KR100963195B1 Moving-plates type sludge disposal device having separable structure
KR20080108929A System and method for concentrating sludge
KR100814361B1 Eccentric shaft for driving moving-plates of sludge disposal device
KR100736695B1 Non-screw type sludge concentration device