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DH CO LTD

Overview
  • Total Patents
    13
  • GoodIP Patent Rank
    136,861
  • Filing trend
    ⇧ 200.0%
About

DH CO LTD has a total of 13 patent applications. It increased the IP activity by 200.0%. Its first patent ever was published in 2012. It filed its patents most often in Republic of Korea and WIPO (World Intellectual Property Organization). Its main competitors in its focus markets environmental technology, chemical engineering and machine tools are LEE KYUNG OK, NEY ANDREW FRANCIS and FMC TECHNOLOGIES ITALIA S P A.

Patent filings in countries

World map showing DH CO LTDs patent filings in countries

Patent filings per year

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

Top inventors

# Name Total Patents
#1 Koo Ja Ok 5
#2 Choi Chang Su 4
#3 Gil Tae Hyoung 3
#4 Kim Tae Hwa 3
#5 Choi Yong Am 3
#6 Cho Kyung Min 3
#7 Yoon Kyoung Han 2
#8 Son Han Young 1
#9 Choi Byung Gi 1
#10 Kim Dong-Hoon 1

Latest patents

Publication Filing date Title
KR102234086B1 Equal Dispensing type sludge collecting device
KR102196969B1 Apparatus for forming notch groove on stay rod of headrest
KR102222088B1 Vinyl sealing machine for packaging
KR102143345B1 Dual die coater
KR102163410B1 Column installation structure for road safety facilities
KR102097364B1 Packing bag automatic packing device
KR102085804B1 High purity biofuel production system using biomass and high purity biofuel production method using same
KR101983532B1 forming apparatus for groove on stay rod of headrest
WO2019107757A1 Organic waste acidogenesis tank equipped with stirring device for controlling temperature in reactor
KR20200038666A Organic waste treatment apparatus and process for thermophilic and mesophilic operation with ultrasonic pretreatment
KR20200001898A sludge treatment apparatus using ultrasonic wave
KR101802708B1 Molding method of headrest stay rod
KR101334741B1 Prefabricated structures using blocks