Learn more

BEIJING CHINA COAL MINE ENG CO

Overview
  • Total Patents
    166
  • GoodIP Patent Rank
    12,986
  • Filing trend
    ⇧ 40.0%
About

BEIJING CHINA COAL MINE ENG CO has a total of 166 patent applications. It increased the IP activity by 40.0%. Its first patent ever was published in 2008. It filed its patents most often in China. Its main competitors in its focus markets civil engineering, measurement and materials and metallurgy are DEILMANN C BERGBAU GMBH, HERRENKNECHT AG and JIANGSU CMLX ENERGY TECH CO LTD.

Patent filings in countries

World map showing BEIJING CHINA COAL MINE ENG COs patent filings in countries
# Country Total Patents
#1 China 166

Patent filings per year

Chart showing BEIJING CHINA COAL MINE ENG COs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Liu Zhiqiang 46
#2 Gao Wei 30
#3 Jing Guoye 27
#4 Cheng Shouye 25
#5 Li Fangzheng 25
#6 Tan Hao 22
#7 Jiang Haoliang 21
#8 Liu Shujie 21
#9 Feng Xuhai 20
#10 Tian Le 19

Latest patents

Publication Filing date Title
CN112127895A Horizontal freezing hole broken pipe rapid processing device and construction method
CN112033993A Pipe curtain freezing analog simulation test device for quantitatively and dynamically simulating groundwater supply
CN112031871A Four-wing stretching type underground space water-blocking grille device
CN112033823A Experimental device for be used for freezing pipe curtain intertube frozen soil shearing slip mechanics characteristic research
CN112067467A Test method for researching shear slip mechanical property of frozen soil between freezing pipe curtain and freezing pipe
CN112031780A Non-full-section mechanical construction method for water-bearing stratum tunnel contact passage
CN112031801A Subsidence control method for subway tunnel to penetrate existing operation line
CN111829406A Intelligent identification device and identification method for lost-explosive detonators and lost-explosive in shaft construction
CN111827879A Horizontal drilling construction method for large-diameter pipe shed in shallow-earth-covered weak stratum
CN111862378A Intelligent safety inspection system for coal mine shaft construction based on negative pressure adsorption technology
CN111822675A Centrifugal casting process of rare earth wear-resistant alloy steel rock breaking hobbing cutter shell
CN111778978A Water-rich soft soil foundation pit bottom water sealing and reinforced ground directional horizontal hole grouting process
CN111680403A Frozen wall development condition judgment and early warning method based on thermal-acoustic coupling algorithm
CN111608662A Shaft oversized-diameter integral moving metal template
CN111456813A Wireless temperature monitoring transmission device in mine shaft
CN111365002A Ground pre-grouting method for small-section high wellbore in complex stratum
CN111379524A Raise boring equipment and process for gas cooling and slag discharging in water-deficient environment
CN111287673A Raise boring machine guide hole nipple joint with mud return-proof device
CN111287751A Intelligent electrically-driven raise boring machine and drilling control method thereof
CN111365001A Freezer capable of realizing staged freezing and staged freezing method