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CHONGQING CHANGFENG CHEMICAL IND CO LTD

Overview
  • Total Patents
    12
  • GoodIP Patent Rank
    137,651
  • Filing trend
    ⇩ 100.0%
About

CHONGQING CHANGFENG CHEMICAL IND CO LTD has a total of 12 patent applications. It decreased the IP activity by 100.0%. Its first patent ever was published in 2015. It filed its patents most often in China. Its main competitors in its focus markets chemical engineering, surface technology and coating and measurement are ZHEJIANG YANSIZHI NETWORK TECH CO LTD, SCHWARZ ERNST MAFAC GMBH and ZHANGJIAGANG HAOTIAN METAL TECHNOLOGY CO LTD.

Patent filings in countries

World map showing CHONGQING CHANGFENG CHEMICAL IND CO LTDs patent filings in countries
# Country Total Patents
#1 China 12

Patent filings per year

Chart showing CHONGQING CHANGFENG CHEMICAL IND CO LTDs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Li Dingshan 11
#2 Zhou Weiping 1
#3 Li Shutao 1

Latest patents

Publication Filing date Title
CN107673971A The method for producing 1,4 cyclohexyl dicarboxylic acid diphenyl esters
CN105478305A Layer scraping device used for paste
CN105478427A Cleaning device specially used for reaction kettle
CN105457846A Uniform glue scraping device
CN105486051A Drying and dehumidifying device for chemical raw materials
CN105480730A Emptying device for ton barrel
CN105478423A Device used for cleaning reaction container
CN105539542A Transport vehicle for chemical pipelines
CN105486069A Drying device for chemical raw materials
CN105486089A Boiler feeding device for smelting
CN105597374A Water removal device for nitrobenzene
CN105466743A Adjustable glue scraping device