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CHINA RAILWAY TUNNEL SURVEY & DESIGN INST CO LTD

Overview
  • Total Patents
    127
  • GoodIP Patent Rank
    12,300
  • Filing trend
    ⇩ 100.0%
About

CHINA RAILWAY TUNNEL SURVEY & DESIGN INST CO LTD has a total of 127 patent applications. It decreased the IP activity by 100.0%. 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, transport and thermal processes are HYUN E & C, YOON IN BYUNG and YAO YANMING.

Patent filings in countries

World map showing CHINA RAILWAY TUNNEL SURVEY & DESIGN INST CO LTDs patent filings in countries
# Country Total Patents
#1 China 127

Patent filings per year

Chart showing CHINA RAILWAY TUNNEL SURVEY & DESIGN INST CO LTDs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 He Weiguo 78
#2 Zhu Shiyou 38
#3 Xu Tao 31
#4 Fan Guogang 27
#5 Song Chaoye 23
#6 Xing Yonghui 20
#7 Jiang Baochen 20
#8 Tang Shangming 16
#9 Yu Yong 15
#10 Yan Dong 15

Latest patents

Publication Filing date Title
CN112228118A Construction method for controlling deformation of pilot tunnel of underground excavation station of subway
CN112213007A Wireless monitoring method for tunnel primary support arch strain based on RFID technology
CN109631838A A kind of railway tunnel distortion monitoring points and method for embedding
CN109653394A A kind of one-way rotating type mechanical energy consumption device for large civil structure
CN109631837A A kind of method for embedding for subway work surface subsidence monitoring point
CN108104837A A kind of method that tunnel-liner fast continuous placing is realized using automatic material distributing device
CN108104838A A kind of automation control method of lining construction
CN107655134A The aeration structure and its design method of a kind of Urban Rail Transit Stations
CN107514277A A kind of city track traffic engineering emergency escape pipeline configuration and design method
CN107464026A A kind of Urban Rail Transit Stations siteselecting planning device and scheme
CN107524174A A kind of diaphragm wall I-shaped steel joint provided with water expandable waterstop
CN107700473A A kind of I-shaped steel joint for being welded with peg
CN107630713A A kind of shield tunnel lower floor fire escape of growing up ensures the method for ventilation of malleation
CN107559026A A kind of subway station of double hole bilayer push pipe Spatial Couplings
CN107559020A A kind of separate type tunneling bilayer subway station
CN107460887A A kind of subway station of shield two layer of space combination
CN107542477A A kind of subway distribution of the threaded list road of single hole shield space four combination
CN107388189A One kind provides green energy resource subway gateway
CN107386239A A kind of bridge-type man-made island
CN107424515A A kind of subway kinetic art wall