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CHANGSHA ENG & RES INST NONFERROUS METALLURGY CO LTD

Overview
  • Total Patents
    93
  • GoodIP Patent Rank
    23,470
  • Filing trend
    ⇩ 100.0%
About

CHANGSHA ENG & RES INST NONFERROUS METALLURGY CO LTD has a total of 93 patent applications. It decreased the IP activity by 100.0%. Its first patent ever was published in 2008. It filed its patents most often in China. Its main competitors in its focus markets environmental technology, civil engineering and materials and metallurgy are MCGAULEY PATRICK J, SHANDONG HUMON SMELTING CO LTD and MANGSHI HAIHUA DEV CO LTD.

Patent filings in countries

World map showing CHANGSHA ENG & RES INST NONFERROUS METALLURGY CO LTDs patent filings in countries
# Country Total Patents
#1 China 93

Patent filings per year

Chart showing CHANGSHA ENG & RES INST NONFERROUS METALLURGY CO LTDs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 He Xingmin 14
#2 Wei Jimin 9
#3 Chen Fudong 8
#4 Zhang Min 8
#5 Yuan Aiwu 8
#6 Shu Jianyi 8
#7 Shi Yun 7
#8 Zuo Xiaohong 7
#9 Zhu Zhiying 7
#10 Yin Zehui 6

Latest patents

Publication Filing date Title
CN106869935A A kind of two-way pick ditch method of opencut
CN106628383A Full automatic concentrate material large-tonnage bag hanging and packing device
CN106733592A A kind of sorting consumer waste technique
CN106499396A The thick low-angle dip ore block house column mining codes of interlayer containing barren rock in one kind
CN106767213A A kind of Roof Control blasting method of soft broken top board ore body back production
CN106672919A Acid making process and device adopting SO2 pre-reforming
CN106761758A Artificial concrete guard wall reconstruct studding waste fill mining methods
CN106767209A A kind of blast hole projectile filling and blocking device
CN106744758A A kind of method that decomposing phosphate rock stone produces phosphoric acid
CN106319242A Method for continuously and directly smelting lead
CN106119903A Pick plate after stripping zinc and mend plate system, stripping zinc purge system and stripping zinc brushing method
CN106268179A The energy saving technique of a kind of synthetical recovery sulfuric acid purification spent acid and system
CN106335882A Sulfuric acid drying suction process complete low-temperature position heat recovery system
CN106011458A Method for arsenic removal of high-arsenic multi-metal complex materials and device thereof
CN105671314A Direct smelting method and system for producing metallic lead and zinc at the same time
CN105750093A Flotation method of copper oxide ores
CN105567994A Method for separating manganese and silver out from oxidized type manganese-silver ore
CN105588444A Automatic feeding machine for smelting furnace
CN105688603A Regenerative desulfurization system adopting mechanical steam supercharging
CN105782071A Water isolation pulp pump fault diagnosis method based on probabilistic neural network