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YANGQUAN COAL IND GROUP HUAYUE MACHINERY CO LTD

Overview
  • Total Patents
    13
  • GoodIP Patent Rank
    132,959
  • Filing trend
    ⇧ 25.0%
About

YANGQUAN COAL IND GROUP HUAYUE MACHINERY CO LTD has a total of 13 patent applications. It increased the IP activity by 25.0%. Its first patent ever was published in 2016. It filed its patents most often in China. Its main competitors in its focus markets civil engineering, machine tools and mechanical elements are CHINA COAL FIRST CONSTRUCTION CO LTD, SHANDONG TANGKOU COAL MINING CO LTD and HUAINAN MINING INDUSTRY GROUP.

Patent filings in countries

World map showing YANGQUAN COAL IND GROUP HUAYUE MACHINERY CO LTDs patent filings in countries
# Country Total Patents
#1 China 13

Patent filings per year

Chart showing YANGQUAN COAL IND GROUP HUAYUE MACHINERY CO LTDs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Bai Yongsheng 9
#2 Guo Dai 6
#3 Hu Minggang 6
#4 Chen Yinghua 5
#5 Li Shuqin 5
#6 Shan Jilin 5
#7 Cui Yufei 4
#8 Wang Kunhong 4
#9 Shen Huanhuan 4
#10 Liang Zhuanzhi 3

Latest patents

Publication Filing date Title
CN108644185A A kind of combined type suppresses plug and hydraulic unit suppresses test method
CN108436240A A kind of pipe communicated wire plasma cutter
CN108798696A A kind of narrow support odd-shaped cross section belt feeder transport device
CN108504847A A kind of hydraulic support structural member post weld heat treatment method
CN108466996A A kind of unpowered rollover stand that voluntarily can slowly rotate
CN107630864A A kind of cylinder seal longevity test device
CN107632228A A kind of electro-hydraulic bracket control system connector intelligent detection device in colliery
CN106988777A A kind of method that utilization screen casing draws out methane
CN106930735A One kind can open and close type rig screen casing cap
CN105971650A Pushing device for hydraulic support base
CN105971665A Guide rod fixing type coal mine negative pressure automatic water discharger
CN106077985A A kind of Laser Welding method of hydraulic jack post surface laser cladding corrosion resistant plate alive
CN106041429A Method for manufacturing double-helix drum of belt conveyer