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CHENGDU TIANYOU TUNNELKEY CO LTD

Overview
  • Total Patents
    11
  • GoodIP Patent Rank
    151,523
About

CHENGDU TIANYOU TUNNELKEY CO LTD has a total of 11 patent applications. Its first patent ever was published in 2016. It filed its patents most often in China. Its main competitors in its focus markets measurement, civil engineering and computer technology are SHANGHAI TUNNEL ENG CO LTD, EPIROC HOLDINGS SOUTH AFRICA PTY LTD and CHINA RAILWAY 14 BUREAU GROUP CO LTD.

Patent filings in countries

World map showing CHENGDU TIANYOU TUNNELKEY CO LTDs patent filings in countries
# Country Total Patents
#1 China 11

Patent filings per year

Chart showing CHENGDU TIANYOU TUNNELKEY CO LTDs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Qiu Wenge 10
#2 Cheng Yunjian 4
#3 Jian Liao 3
#4 Guo Bingzheng 2
#5 Lu Feng 2
#6 Sun Keguo 2
#7 Li Bin 2
#8 Bai Hengbin 2
#9 Li Chang 2
#10 Zheng Yuchao 2

Latest patents

Publication Filing date Title
CN112254636A Tunnel detection equipment capable of simultaneously acquiring lining image and three-dimensional spatial information
CN112254637A Tunnel excavation surface scanning device and detection method based on various fusion data
CN111236982A Novel net anchor structure
CN111156036A Novel plate anchor structure
CN110672622A Tunnel defect rapid positioning method based on point cloud data and total station
CN109596105A A kind of portable determines the scaling method of photographic scale after three-dimensional reconstruction
CN109543283A A kind of internal force based on structure convergent deformation and calculating of surrounding rock pressure method
CN108843330A A kind of stratum active support and change method of Tunneling by mining method construction
CN108868789A A kind of stratum active support and change method suitable for shield construction tunnel
CN106522982A Method for constructing anti-floating anti-sinking anti-hydraulic pressure damping tunnel in water-rich unconsolidated stratum
CN106555598A A kind of just two lining leave a blank separate structure and its external mold applies method with cushion