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CHANGCHUN GOLD RES INST

Overview
  • Total Patents
    411
  • GoodIP Patent Rank
    4,065
  • Filing trend
    0.0%
About

CHANGCHUN GOLD RES INST has a total of 411 patent applications. It increased the IP activity by 0.0%. Its first patent ever was published in 2003. It filed its patents most often in China, WIPO (World Intellectual Property Organization) and Australia. Its main competitors in its focus markets environmental technology, measurement and chemical engineering are JIANGXI NERIN RARE AND PRECIOUS METALS SCIENCE & TECH CO LTD, NATURVARD RES CA LTD and SMOLENSK G MED INST.

Patent filings in countries

World map showing CHANGCHUN GOLD RES INSTs patent filings in countries

Patent filings per year

Chart showing CHANGCHUN GOLD RES INSTs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Li Zhehao 74
#2 Hao Fulai 70
#3 Liu Qiang 65
#4 Zheng Ye 52
#5 Chen Yonghong 43
#6 Chi Chongzhe 38
#7 Meng Xianwei 29
#8 Ge Zhongyi 29
#9 Lu Xingen 28
#10 Li Jian 28

Latest patents

Publication Filing date Title
CN112142070A Method for separating and recycling valuable metals in cyanide-containing wastewater
CN112284959A Method for determining influence of gold-robbing substances in gold ore product on gold and silicate-coated gold
CN112094653A Improvement of Suda saline-alkali soil and generation method of biochemical fulvic acid raw material
CN112253112A Medium-length hole dynamic squeezing and expanding mining method and device for loose and broken ore body
CN112133469A Mixed organic solvent for preparing high-temperature sintering conductive slurry
CN112147097A Method for removing interference of hypochlorite and ferric iron in thiocyanate determination
CN112147298A Automatic operation method for mixing, melting and blowing fire test gold
CN112285270A Method for determining total cyanide in water containing hydrogen peroxide
CN112028309A Method for resource recovery of high-concentration cyanide-containing wastewater and treatment of intermediate product
CN112058882A Closed pile ecological restoration method for gold ore heap leaching field
CN111579338A Method for measuring gold in secondary utilization waste
CN111732223A Harmless treatment and backfill utilization method of high-arsenic cyanided tailings
CN111732275A Advanced treatment method for high-hardness cyanide-containing wastewater
CN111650139A Thiocyanate determination method for removing hydrogen peroxide interference
CN111650140A Thiocyanate determination method for removing interference of copper, iron and mercury
CN111760878A Method for strengthening natural degradation of cyanogen slag
CN111650081A Method for measuring gold quality and harmful elements in gold of pure silver gold-plated jewelry
CN111665206A Method for rapidly identifying natural ruby and synthetic ruby
CN111562353A Method for measuring occurrence state of gold in gold concentrate
CN111456729A Mining method of steeply inclined thin ore body