Learn more

POWERCHINA RAILWAY CONSTR CO LTD

Overview
  • Total Patents
    79
  • GoodIP Patent Rank
    18,462
  • Filing trend
    ⇧ 112.0%
About

POWERCHINA RAILWAY CONSTR CO LTD has a total of 79 patent applications. It increased the IP activity by 112.0%. Its first patent ever was published in 2014. It filed its patents most often in China. Its main competitors in its focus markets civil engineering, measurement and packaging and shipping are CHINA RAILWAY 20 BUREAU GROUP CORP, China railway tunnel group co ltd and CHINA RAILWAY NO 5 ENG GROUP.

Patent filings in countries

World map showing POWERCHINA RAILWAY CONSTR CO LTDs patent filings in countries
# Country Total Patents
#1 China 79

Patent filings per year

Chart showing POWERCHINA RAILWAY CONSTR CO LTDs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Wang Guoyi 21
#2 Meng Qingming 18
#3 Fang Shitao 14
#4 Mao Yufei 13
#5 Wang Cheng 11
#6 Jiang Zongquan 8
#7 Ye Zhisheng 7
#8 Zhao Chunsheng 7
#9 Liu Xiuzheng 7
#10 Wen Renguang 6

Latest patents

Publication Filing date Title
CN112034148A Cement slurry stability detection device and method
CN112031820A Shield tunnel segment assembling and positioning device and assembling process
CN112031837A Tunnel lining structure for fault
CN111910949A Rapid blocking structure for top plate access of existing underground station and construction method
CN111946109A Bridge construction combined elevated station structure and construction method
CN111894609A Slurry balance shield stone taking device and construction method
CN111894615A Air pressure balance shield machine and construction method
CN111735427A Non-contact monitoring method for monitoring surface subsidence
CN111910629A Mortar anchor rod construction equipment and construction method
CN111747308A 25m steel rail replacing and laying device for extra-long subway tunnel and using method
CN111608713A Ventilation and heat insulation system for underground excavation subway station in alpine region and construction method
CN111608669A Shield tail sealing grease injection system and injection method for shield
CN111608668A Anti-explosion device for gas tunnel earth pressure balance shield construction and construction method
CN111608667A Multipoint sealing grease injection device and method for shield tail sealing
CN111155361A Construction method of replaceable frame type vibration reduction floating slab track bed of subway
CN110905549A Three-dimensional typesetting design method and device for shield tunnel universal ring segment, storage medium and equipment
CN110656948A Shield tunnel soil discharge and gushing prevention device for soil bin and construction method
CN110847916A Construction method for shield tunneling civil air defense engineering
CN110640903A Concrete mixing equipment convenient to clean and using method
CN110717986A Shield tunnel construction system based on virtual reality technology