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QINGDAO LANGUANG JINGKE NEW MAT CO LTD

Overview
  • Total Patents
    21
  • GoodIP Patent Rank
    78,399
  • Filing trend
    ⇧ 62.0%
About

QINGDAO LANGUANG JINGKE NEW MAT CO LTD has a total of 21 patent applications. It increased the IP activity by 62.0%. Its first patent ever was published in 2017. It filed its patents most often in China. Its main competitors in its focus markets materials and metallurgy, surface technology and coating and machine tools are SCHMID SILICON TECHNOLOGY GMBH, N E D SILICON S P A and KANEKO KYOJIRO.

Patent filings in countries

World map showing QINGDAO LANGUANG JINGKE NEW MAT CO LTDs patent filings in countries
# Country Total Patents
#1 China 21

Patent filings per year

Chart showing QINGDAO LANGUANG JINGKE NEW MAT CO LTDs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Zhang Lei 19
#2 Guo Xiaoliang 12
#3 Chen Liangjie 8
#4 Tan Yi 6
#5 Gu Zheng 6
#6 Zhang Xiaofeng 6
#7 Jiang Dachuan 5
#8 Shi Shuang 5
#9 Li Pengting 5
#10 Xiao Chengxiang 3

Latest patents

Publication Filing date Title
CN109264725A The provision for disengagement of silicon ingot and method for dismounting after electron-beam smelting
CN109292778A Electron-beam smelting removes the method and device of volatile impurity in silicon
CN108946739A A kind of silicon materials process for effectively purifying and device
CN109110766A The method and apparatus that silicon material efficiently purifies after a kind of medium melting
CN109133067A A kind of method and device improving electron-beam smelting polysilicon efficiency
CN108796456A The preparation method and device of refractory metal annular target
CN108818206A A kind of silicon target facing attachment
CN109019606A Electron beam removes the process of phosphorus and metal impurities in silicon
CN108128778A A kind of method of boron in vapor auxiliary electron beam melting removal silicon
CN108328618A A kind of method of hard inclusions in electromagnetic induction directional solidification divided silicon
CN108441946A A method of reducing the whole head of ingot tail portion resistance deviation of polycrystalline silicon target
CN108557825A A kind of method that low cost removes carbon, nitrogen impurity in polysilicon
CN108128779A A kind of method of carbon, nitrogen impurity in removal polysilicon
CN108149316A A kind of method of casting polycrystalline silicon target using powder
CN108101064A A kind of method of hard inclusions in temperature gradient divided silicon
CN106676485A Production method for runway type silicon target material
CN106766869A A kind of new target furnace apparatus and target bonding method
CN106695259A Machining method for semicircular target material
CN106735670A A kind of modified target furnace apparatus and target bonding method
CN106736884A A kind of production method of special angle silicon target