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HULUDAO ZINC INDUSTRY CO LTD

Overview
  • Total Patents
    31
  • GoodIP Patent Rank
    212,389
About

HULUDAO ZINC INDUSTRY CO LTD has a total of 31 patent applications. Its first patent ever was published in 2007. It filed its patents most often in China. Its main competitors in its focus markets environmental technology are GUANGXI RES INST OF METALLURG, SHENHUA GROUP CORP and XI'AN SHENKE ELECTRONIC RES INST.

Patent filings in countries

World map showing HULUDAO ZINC INDUSTRY CO LTDs patent filings in countries
# Country Total Patents
#1 China 31

Patent filings per year

Chart showing HULUDAO ZINC INDUSTRY CO LTDs patent filings per year from 1900 to 2020

Focus industries

Focus technologies

Top inventors

# Name Total Patents
#1 Guo Tianli 12
#2 Tianli Guo 9
#3 Cheng Yongqiang 6
#4 Yidong Jia 6
#5 Jia Yidong 5
#6 Xi Yingzhou 5
#7 Jiang Wu 5
#8 Yongqiang Cheng 4
#9 Wei Liqing 4
#10 Liqing Wei 4

Latest patents

Publication Filing date Title
CN105039739A Method for comprehensively recovering cobalt and zinc from purified cobalt residues of zinc hydrometallurgy
CN104480332A Production method of zinc-antimony alloy
CN104152729A Production method of lead-thallium alloy
CN103614592A Production method of zinc-aluminum-manganese-magnesium alloy for hot dipping
CN103418502A Flotation column fine screening technology for recovering gold from conventional zinc leaching residues
CN103409645A Method for producing high-purity zinc
CN103272703A Method for conducting roughing on silver in electrolytic zinc leaching residue by utilizing vertical flotation machine
CN103173631A Smelting method of sponge cadmium
CN103103367A Copper removing method for bismuth refining
CN103071803A Equipment and method for preparing zinc particles for electric plating
CN102899501A Device and method for enriching and recycling valuable metals from zinc-containing impurities through cyclone smelting
CN102796869A Method for removing chlorine in zinc sulfate solution with high chlorine content
CN102706718A Sampling reduction device
CN102634666A Method for dearsenicating fresh high-arsenium lead anode slime under oxygen pressure
CN102605194A Preparation method of high purity zinc by vacuum distillation
CN102605181A Method for removing impurities from secondary zinc materials
CN102443708A Device and method for extracting zinc powder from zinc casting floating slag
CN102312131A Alloy for hot-dip plating and production method
CN102345015A Method for removing thallium in process of producing refined cadmium with high-temperature dust generated by acid preparing system
CN102321815A Method for extracting indium from indium-containing zinc oxide