Learn more

CHINA RAILWAY 14TH BUREAU GROUP LARGE SHIELD ENG CO LTD

Overview
  • Total Patents
    30
  • GoodIP Patent Rank
    52,775
About

CHINA RAILWAY 14TH BUREAU GROUP LARGE SHIELD ENG CO LTD has a total of 30 patent applications. Its first patent ever was published in 2018. It filed its patents most often in China. Its main competitors in its focus markets civil engineering, computer technology and environmental technology are China railway tunnel group co ltd, CHINA RAILWAY TUNNELS GROUP CO and CHINA TIESIJU CIVIL ENG GROUP CO LTD.

Patent filings in countries

World map showing CHINA RAILWAY 14TH BUREAU GROUP LARGE SHIELD ENG CO LTDs patent filings in countries
# Country Total Patents
#1 China 30

Patent filings per year

Chart showing CHINA RAILWAY 14TH BUREAU GROUP LARGE SHIELD ENG CO LTDs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Zhao Bin 13
#2 Chen Shuang 12
#3 Liu Lei 12
#4 Gao Shijun 12
#5 Fang Xinsheng 12
#6 Du Guixin 12
#7 Liu Shanfu 12
#8 Liu Sijin 10
#9 Li Ruiguang 8
#10 Wang Jun 6

Latest patents

Publication Filing date Title
CN111852488A Construction method for large-diameter shield tunnel contact net channel of high-speed railway
CN111594194A Shield constructs quick-witted operating condition monitored control system
CN111723484A Method and device for determining risk level of risk source
CN111662026A Slurry shield muck treatment system and method for synchronous grouting
CN111741098A Engineering data monitoring method, engineering data monitoring device and engineering data monitoring system
CN111648788A Tunnel protection construction method adjacent to subway line
CN111648399A Protection and reinforcement method for retaining wall structure
CN111639468A Method and device for predicting surface sedimentation value and computer readable storage medium
CN111520169A Novel large-diameter shield box culvert bottom grouting device
CN111520170A Secondary grouting slurry for large-diameter shield on water-rich sand layer and sealing plug thereof
CN111550253A A novel platform of dodging that is used for major diameter shield to construct shaping tunnel box culvert both sides
CN111622230A Protection method for pipeline penetrating foundation pit
CN111680350A Safety assessment method and device for shield tunnel and computer readable storage medium
CN111667177A Method and device for determining comprehensive reduction coefficient of reinforced concrete structure
CN111622774A Fine adjustment assembly trolley and assembly method for prefabricated box culvert of shield tunnel
CN111622780A Joint grouting construction method of structure under rail
CN111560959A Excavation and supporting method for shield starting well foundation pit adjacent to subway
CN111608691A Shield working well template support construction method
CN111502679A Simulation shield constructs blade disc mud cake and forms device
CN111622766A Method for judging mud cake formed on cutter head of shield machine and detecting position of mud cake