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CHINA RAILWAY LIUYUAN GROUP CO LTD

Overview
  • Total Patents
    139
  • GoodIP Patent Rank
    10,294
  • Filing trend
    ⇧ 416.0%
About

CHINA RAILWAY LIUYUAN GROUP CO LTD has a total of 139 patent applications. It increased the IP activity by 416.0%. Its first patent ever was published in 2015. It filed its patents most often in China. Its main competitors in its focus markets civil engineering, computer technology and it methods for management are CHINA RAILWAY 22ND BUREAU GROUP RAIL ENG CO LTD, ERCHU CO LTD OF CHINA RAILWAY TUNNEL GROUP and BEAUTHIER JEAN MARIE.

Patent filings in countries

World map showing CHINA RAILWAY LIUYUAN GROUP CO LTDs patent filings in countries
# Country Total Patents
#1 China 139

Patent filings per year

Chart showing CHINA RAILWAY LIUYUAN GROUP CO LTDs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 He Weiguo 63
#2 Song Chaoye 30
#3 Fan Guogang 25
#4 Fei Manli 19
#5 Chen Han 16
#6 Niu Fengming 15
#7 Qing Zhou 14
#8 Fu Gongyun 14
#9 Yang Zhe 14
#10 Zhang Peizhu 13

Latest patents

Publication Filing date Title
CN112282797A Superfine high-type rock tunnel cavern and construction method thereof
CN112267898A Internal and external interactive supporting structure and supporting method for tunnel portal with large span
CN112253189A Method for excavating rock pillar in giant span cavern and pre-support system thereof
CN112016906A Method for unifying multiple coding systems of BIM management platform in tunnel construction
CN112016166A Differentiation comparison method for three-dimensional model of subway design
CN112016152A Big data auxiliary construction decision method for tunnel construction BIM management platform
CN111979847A No. 3.5 symmetrical turnout suitable for 762mm gauge and construction method thereof
CN111923940A Automatic water supply connector for railway passenger car
CN111997406A Transition transformation method for railway station yard
CN111852532A Protection support for subway tunnel construction of net section bar structure
CN111932655A Automatic processing method for building railway line information model based on AutoCAD
CN111778923A Semi-automatic flood prevention device for rail transit entrance and exit
CN111894647A Ventilation method without air shaft in large shield subway station range
CN111636265A Road structure of highway underpass railway overpass and method for changing level crossing into overpass
CN111810177A Underground TBM (tunnel boring machine) disassembling method based on double-line operation
CN111502715A Method for comprehensively constructing fractured rock mass in oversized underground cavern crossing stage
CN111560800A Railway station turnout reinforcing device and method
CN111502677A Underground engineering depth combined geological survey arrangement method
CN111506956A Controllability design method for extra-large cross-chamber supporting structure
CN111472813A Super-large-span anchor-shotcrete support rock tunnel water-proof and drainage system and construction method