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NINGBO CHANGZHEN COPPER CO LTD

Overview
  • Total Patents
    29
  • GoodIP Patent Rank
    71,628
  • Filing trend
    ⇩ 20.0%
About

NINGBO CHANGZHEN COPPER CO LTD has a total of 29 patent applications. It decreased the IP activity by 20.0%. Its first patent ever was published in 2012. It filed its patents most often in China. Its main competitors in its focus markets materials and metallurgy, environmental technology and machine tools are METALLO BELGIUM, TH GOLDSCHMIDT AKT GES and SCANDIUM INT MINING CORPORATION.

Patent filings in countries

World map showing NINGBO CHANGZHEN COPPER CO LTDs patent filings in countries
# Country Total Patents
#1 China 29

Patent filings per year

Chart showing NINGBO CHANGZHEN COPPER CO LTDs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Song Changhong 23
#2 Song Kadi 16
#3 Fu Zhixiang 15
#4 Lang Bin 11
#5 Luo Gaosheng 10
#6 Guo Shumei 10
#7 Zhu Shashuang 10
#8 Yang Dongchao 9
#9 Li Zhiguo 8
#10 Wang Chengyan 5

Latest patents

Publication Filing date Title
CN111961877A Method for purifying scrap copper melt
CN111961878A Method for reducing high-melting-point impurity elements in scrap copper
CN112095033A Method for reducing impurity element manganese in waste brass
CN112125682A Furnace striking material for melting channel of regenerative brass power frequency induction furnace and use method
CN111218561A Composite refining agent for reducing impurity element aluminum in waste brass and use method thereof
CN111020265A Bismuth-removing additive for removing impurity element bismuth in regenerated brass and application thereof
CN110791679A Brass alloy and production method thereof
CN110684901A Method for reducing iron content in waste brass
CN109439910A A kind of regeneration copper refining three-body casting furnace and casting method
CN109848227A Bar drawing device and drawing process
CN109648421A Automatic butt welding finishing machine
CN109371248A A method of reducing lead content in waste and old brass
CN108034854A A kind of multicomponent microalloying brass alloys
CN107443095A Bar automatic processing device
CN107571078A Bar stock header structure processed automatically
CN107627106A Bar vertical pulling processes structure
CN107299247A A kind of copper alloy and method for producing complicated abnormal shape end face bar
CN106350689A Method for directly producing copper alloy from scrap copper
CN105087897A Stepping-rolling-type cast ingot heating furnace
CN104775051A Wear-resistant copper alloy material for producing pen cores and preparation method thereof