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HUBEI ZHENHUA CHEMICAL CO LTD

Overview
  • Total Patents
    33
  • GoodIP Patent Rank
    70,561
  • Filing trend
    ⇩ 90.0%
About

HUBEI ZHENHUA CHEMICAL CO LTD has a total of 33 patent applications. It decreased the IP activity by 90.0%. Its first patent ever was published in 2010. It filed its patents most often in China. Its main competitors in its focus markets materials and metallurgy, environmental technology and measurement are JILIN JIEN NICKEL IND CO LTD, MOLIBDENOS Y METALES S A and HIGHVELD STEEL AND VANADIUM CO.

Patent filings in countries

World map showing HUBEI ZHENHUA CHEMICAL CO LTDs patent filings in countries
# Country Total Patents
#1 China 33

Patent filings per year

Chart showing HUBEI ZHENHUA CHEMICAL CO LTDs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Cheng Xichuan 21
#2 Xu Hongbin 21
#3 Zhang Yi 19
#4 Zhang Hongling 17
#5 Liu Jingwen 16
#6 Duan Jing 13
#7 Cai Zaihua 13
#8 Qing Penghui 13
#9 Shi Daxue 12
#10 Pei Lili 12

Latest patents

Publication Filing date Title
CN111944992A Method for extracting chromium from chromite
CN112048619A Method for separating and recovering chromium, iron, aluminum and magnesium from mixed solution
CN111977700A Method for separating and recovering chromium, iron, aluminum and magnesium from mixed solution
CN112011688A Method for separating vanadium and chromium from chromium-containing polyvanadate
CN111943267A Method for preparing chromium sesquioxide from vitamin K3 residual liquid
CN111139359A Method for extracting chromium from chromium slag and pretreating chromium slag by acid leaching
CN111115685A Treatment method for intermittently neutralizing sodium chromate alkaline solution
CN110980773A Method and device for producing anhydrous sodium sulfate from chromium-containing mirabilite
CN112142073A Method for resource utilization of chromium-containing sodium bisulfate
CN112142108A Ammonium dichromate and sodium sulfate mixed crystal and preparation method and application thereof
CN111910076A Method for removing iron impurities from trivalent chromium compound
CN109211718A K in potassium bichromate production2The measuring method of O content
CN109399716A A method of the liquid phase oxidation of material containing chromium mentions chromium
CN109399719A A method of the liquid phase oxidation of material containing chromium mentions chromium
CN109399717A A method of the liquid phase oxidation of material containing chromium mentions chromium
CN109402416A A method of the liquid phase oxidation of material containing chromium mentions chromium
CN109402378A A method of the oxidizing roasting of material containing chromium mentions chromium
CN109402377A A method of control return slag composition oxidizing roasting mentions chromium
CN109399715A A method of the liquid phase oxidation of material containing chromium mentions chromium
CN109292796A A method of caustic alkali and chromate in the solid mixture of separation caustic alkali and chromate