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THE 5TH ENG LTD OF THE 11TH ENG BUREAU OF CHINA RAILWAY

Overview
  • Total Patents
    48
  • GoodIP Patent Rank
    31,406
  • Filing trend
    ⇧ 100.0%
About

THE 5TH ENG LTD OF THE 11TH ENG BUREAU OF CHINA RAILWAY has a total of 48 patent applications. It increased the IP activity by 100.0%. Its first patent ever was published in 2016. It filed its patents most often in China. Its main competitors in its focus markets civil engineering, machines and packaging and shipping are CHINA RAILWAY 20 BUREAU GROUP CORP, CHINA RAILWAY 12TH BUREAU GR and SHANGHAI TUNNEL ENG CO LTD.

Patent filings in countries

World map showing THE 5TH ENG LTD OF THE 11TH ENG BUREAU OF CHINA RAILWAYs patent filings in countries
# Country Total Patents
#1 China 48

Patent filings per year

Chart showing THE 5TH ENG LTD OF THE 11TH ENG BUREAU OF CHINA RAILWAYs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Wang Yuanqing 18
#2 Zhang Kaishun 12
#3 Li Yong 12
#4 Liu Zhiguo 10
#5 Xiong Xiaohui 9
#6 Huang Ming 9
#7 Zhao Fan 8
#8 Liu Minghui 7
#9 Zou Fulin 6
#10 Wang Wei 6

Latest patents

Publication Filing date Title
CN112079652A Tunnel secondary lining temperature control maintenance trolley
CN112112680A High-temperature heat-reducing auxiliary ventilation device for tunnel construction
CN111978038A Porous planting concrete and preparation method thereof
CN111879677A System and method for evaluating performance parameters of porous planting concrete
CN111549764A Trestle steel pipe pile bottom anchoring joint
CN111336875A Efficient tunnel lining dismantling method
CN111041923A Assembled steel fiber concrete road connection structure and road thereof
CN110952434A Variable-span double-support large-displacement front end support transverse moving device and transverse moving method for trestle
CN110714792A Urban deep-buried tunnel partition sectional water-stopping comprehensive construction method
CN110685717A Self-propelled tunnel side wall roughening machine and tunnel side wall roughening method
CN110469346A The anti-visualized forward direction of coming to nothing of tunnel vault concrete is rushed to summit construction method
CN110454197A Tunnel inverted arch subregion operation break-down streamlined construction method
CN110410114A Tunnel-liner rack combines the construction method of mobile inverted arch trestle
CN110424985A A kind of anti-forward direction of coming to nothing of tunnel vault concrete is rushed to summit device
CN110231279A Rock drying and watering cycle corrosion comprehensive testing method
CN110208128A Rock sound water environment and dry simulation comprehensive test system
CN110065167A Tunnel double-lining concrete and Rock cutting mechanism, cutting equipment and cutting method
CN110053172A The universal cutting mechanism of tunnel cantilevered, equipment and cutting method
CN109853402A Large-tonnage big deviation jacking force direction self-regulation device and application for continuous rigid frame bridge closure pushing tow
CN109826646A One-time formed tunnel segment assembly