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ZIGONG HONGHE CHEMICAL INDUSTRY CO LTD

Overview
  • Total Patents
    19
About

ZIGONG HONGHE CHEMICAL INDUSTRY CO LTD has a total of 19 patent applications. Its first patent ever was published in 2005. It filed its patents most often in China. Its main competitors in its focus markets environmental technology are KANKYO MENEKI GIJUTSU KENKYUSH, TIANJIN LIGHT INDUSTRY VOCATIO and VRNII B.

Patent filings in countries

World map showing ZIGONG HONGHE CHEMICAL INDUSTRY CO LTDs patent filings in countries
# Country Total Patents
#1 China 19

Patent filings per year

Chart showing ZIGONG HONGHE CHEMICAL INDUSTRY CO LTDs patent filings per year from 1900 to 2020

Focus industries

Focus technologies

Top inventors

# Name Total Patents
#1 Guoqiang Tang 4
#2 Changbing Qiao 4
#3 Jian Gao 3
#4 Likang Zeng 3
#5 Liu Hansen 2
#6 Zhao Zhengdong 2
#7 Yongbin Yang 2
#8 Cheng Xinyu 2
#9 Shiquan Chen 2
#10 Li Honglin 2

Latest patents

Publication Filing date Title
CN102863621A Polyphenylene sulfide resin refining method
CN102863622A Method for collecting polyphenylene sulfide resin from polyphenylene sulfide resin slurry
CN102786689A Method for producing pharmaceutical dimeticone
CN102816046A Industrial preparation method for tetrachloroethylene
CN102816473A Efficient metal paint remover and preparation method thereof
CN102718623A Method of producing methane chloride by using byproduct hydrogen chloride of tetrachloroethylene device
CN102675143A Method for synthesizing ethenzamide
CN102698498A Solid-liquid separation method for salted mixed liquid in production of polyphenylene sulfide
CN102702528A Production method for polyphenyl thioether
CN102086168A Method for producing bisphthalonitrile terminated diphenyl sulfide oligomer
CN101891584A Preparation method of tetrachloroethylene
CN101560139A Tetracarp producing device with automatic igniter
CN101348948A Preparation of polyphenyl thioether spinning melt
CN101245969A Sealing stove burner for calcined soda steam calcining furnace
CN101118028A Liquid chlorine gasification device and gasification method
CN101205298A Method for recovering distillation residual liquid of polyphenylene sulfide resin synthesis by compression process
CN1944241A Process for producing high purity crystalline sodium sulfide
CN1944291A Method for teating heavy alkali filter liquid in synthesizing alkali producing method
CN1896119A Method for recovering polyphenyl resin from synthetic polyphenyl resin slurry