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CHANGZHOU QINGHONG CHEMICAL CO LTD

Overview
  • Total Patents
    14
About

CHANGZHOU QINGHONG CHEMICAL CO LTD has a total of 14 patent applications. Its first patent ever was published in 2013. It filed its patents most often in China. Its main competitors in its focus markets environmental technology are BERKOVSKIJ A G, NARITA KOGYO KK and JIANGSU TIANHE WATER EQUIPMENT CO LTD.

Patent filings in countries

World map showing CHANGZHOU QINGHONG CHEMICAL CO LTDs patent filings in countries
# Country Total Patents
#1 China 14

Patent filings per year

Chart showing CHANGZHOU QINGHONG CHEMICAL CO LTDs patent filings per year from 1900 to 2020

Focus industries

Focus technologies

Top inventors

# Name Total Patents
#1 Xu Weiming 14

Latest patents

Publication Filing date Title
CN103590478A Dye paste synthetic reaction device
CN103588965A Unsaturated polyester resin synthesis reaction device
CN103588203A Polyester resin synthesis reaction device
CN103588321A Sulfuric acid synthesis reaction device
CN103588334A Polyester resin synthesis reactor
CN103583685A Chemical sulfuric acid synthesis reaction device
CN103590456A Dimethyl sulfate synthesis reaction device
CN103588275A Fumaric acid synthesis reaction device
CN103588320A Chemical fuming sulfuric acid synthesis reaction device
CN103604664A Promoter synthesis reaction device
CN103588337A Triepoxypropyl synthesis reaction device
CN103588291A Methyl sulfate synthesis reaction device
CN103588342A Phthalic anhydride synthesis reaction device
CN103588269A Unsaturated polyester synthesis reaction device