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JUNG YEON CHANG

Overview
  • Total Patents
    22
  • GoodIP Patent Rank
    174,788
  • Filing trend
    ⇩ 100.0%
About

JUNG YEON CHANG has a total of 22 patent applications. It decreased the IP activity by 100.0%. Its first patent ever was published in 2003. It filed its patents most often in Republic of Korea and WIPO (World Intellectual Property Organization). Its main competitors in its focus markets agriculture, machines and environmental technology are ESSEN AGRICULTURAL MACHINERY CHANGZHOU CO LTD, KNIGHTS CHRISTOPHER R and KNIGHTS CHRISTOPHER ROBIN.

Patent filings in countries

World map showing JUNG YEON CHANGs patent filings in countries

Patent filings per year

Chart showing JUNG YEON CHANGs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Jung Yeon Chang 22
#2 Jung Da Bin 11
#3 Park Soon Ho 1

Latest patents

Publication Filing date Title
KR20190008696A Apparatus for spraying pesticide portable use easy shoulder strap bond
KR20180135214A Applicator for automatic herbicide of portable for mobile installation
KR20180101829A Flexible Nozzle direction with easy-separation for agriculture chemical sprayer barrel
KR20180084209A Agriculture chemical sprayer barrel both hand type with a drug dilution function
KR20170027480A Chemical container as one body with apparatus for feeding chemical
KR20170027479A Chemical container connecting tractor loader bucket
KR20160102635A Automatic nozzle apparatus with rotation in horizontal axis and angle inclination in vetical axis for spraying agricultural chemicals into rice fields
KR101633699B1 Double nozzle apparatus for spraying agricultural chemicals into rice fields
KR20150003980A Automatically sprayer of multiple kinds of herbicide for attached to the agricultural tractor
KR20150003981A Automatically sprayer of large capacity herbicide for attached to the agricultural tractor
KR20140074434A Chemicals applicator for seedling box
KR20140000059A Agrochemical spreader mounted on rice transplanter
WO2012150783A2 Y-shirt collar holder
KR20130104434A Same time scattering appatatus of two kinds of granular herbicide mounted on rice transplanter
KR20120140335A Collar holder
KR20120073716A Same time scattering appatatus of two kinds of granular herbicide mounted on rice transplanter
KR20110038450A Agrochemical spreader mounted on rice transplanter
KR20100120388A Injection apparatus for crop protection agents
KR100853020B1 Herbicide automatically sprayer having automatic angle control function
KR100721775B1 Herbicide automatically sprayer with adjustable herbicide injection