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SHANGHAI DUOLUN CHEMICAL CO LTD

Overview
  • Total Patents
    56
  • GoodIP Patent Rank
    41,058
  • Filing trend
    ⇧ 133.0%
About

SHANGHAI DUOLUN CHEMICAL CO LTD has a total of 56 patent applications. It increased the IP activity by 133.0%. Its first patent ever was published in 2009. It filed its patents most often in China. Its main competitors in its focus markets organic fine chemistry, macromolecular chemistry and polymers and textiles and paper are ZHEJIANG HUANGMA TECH CO LTD, TANAKA ENG KK and SHANGHAI RESIN FACTORY CO LTD.

Patent filings in countries

World map showing SHANGHAI DUOLUN CHEMICAL CO LTDs patent filings in countries
# Country Total Patents
#1 China 56

Patent filings per year

Chart showing SHANGHAI DUOLUN CHEMICAL CO LTDs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Xu Xingjian 41
#2 Hou Haiyu 30
#3 Zhang Jiangfeng 25
#4 Shu Jiansheng 22
#5 Zhu Xuewen 22
#6 Li Xiang 21
#7 Lin Zhenyi 21
#8 Wang Jianchen 19
#9 Zhong Min 14
#10 Yang Jian 13

Latest patents

Publication Filing date Title
CN111440306A Catalyst for synthesizing secondary alcohol polyoxyethylene ether and application thereof
CN111393631A Synthesis method of secondary alcohol polyoxyethylene ether
CN111318311A Cocatalyst, catalyst and application thereof
CN111454128A Production method of fatty alcohol-polyoxyethylene ether
CN110156978A The synthetic method of polyoxyethylene carboxylate
CN110183642A Catalyst for polyoxyethylene carboxylate synthesis
CN110067126A Polyacrylic fibre oil
CN110004715A Acrylic fibre spin finishes
CN109879906A The preparation method of phosphate
CN110003267A Phosphate stabilizers
CN109608631A Fatty acid methyl ester ethoxylation catalyst and preparation method thereof
CN109627431A The production method of fatty acid methyl ester APEO
CN111269093A Preparation method of secondary alcohol polyoxyethylene ether
CN111269410A Decoloring agent and production method of secondary alcohol polyoxyethylene ether using decoloring agent
CN111218817A Polyester staple fiber oiling agent
CN109503825A The production method of high ethylene oxide adduct number secondary alcohol polyoxyethylene ether
CN109534969A The preparation method of low ethoxymer distribution secondary alcohol polyoxyethylene ether
CN107722050A The preparation method of phosphate
CN106916056A The process for purification of secondary alcohol APEO
CN107021875A The preparation method of secondary alcohol APEO