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CHINA RAILWAY CONSTR BRIDGE ENG BUREAU GROUP 1ST ENG CO LTD

Overview
  • Total Patents
    18
  • GoodIP Patent Rank
    90,819
  • Filing trend
    ⇧ 50.0%
About

CHINA RAILWAY CONSTR BRIDGE ENG BUREAU GROUP 1ST ENG CO LTD has a total of 18 patent applications. It increased the IP activity by 50.0%. 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, computer technology and measurement are CHINA GEZHOUBA GROUP FIFTH ENG CO LTD, CHINA RAILWAY GUANGZHOU ENG GROUP CO LTD and KUNMING SURVEY DESIGN AND RES INSTITUTE CO LTD OF CREEC.

Patent filings in countries

World map showing CHINA RAILWAY CONSTR BRIDGE ENG BUREAU GROUP 1ST ENG CO LTDs patent filings in countries
# Country Total Patents
#1 China 18

Patent filings per year

Chart showing CHINA RAILWAY CONSTR BRIDGE ENG BUREAU GROUP 1ST ENG CO LTDs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Zhang Guangtao 14
#2 Sha Quanxian 7
#3 Zhang Wenjun 6
#4 Sun Changzhi 6
#5 Peng Zhichuan 6
#6 Wang Xuemin 4
#7 Xu Yibin 4
#8 Li Wenliang 3
#9 Zhao Jian 3
#10 Zhang Jian 3

Latest patents

Publication Filing date Title
CN111962387A Adjustable pressure induction type active cross brace device
CN111794676A All-terrain submersible drilling machine
CN111520166A Lining trolley with functions of transporting and lifting
CN111424562A Two-way slope V type cable-stay bridge concrete bridge tower folds section support
CN110453609A A kind of simplicity steel-pipe pile bracket piling prepressing structure and method
CN110331668A A kind of back-cable-free cable-stayed bridge inclined in two-way V-shaped bridge tower construction method
CN110077960A A kind of wireless remote control is hydraulic to mention indigenous equipment
CN109371834A The shear connections component of steel-concrete composite beam floorings
CN109235269A A kind of steel box arch rib buckling and hanging method construction method of installation
CN109235264A A method of hanging body system is buckled using the foundation of end bay rib structure
CN108867396A A kind of combination constructing method thereof of back-cable-free cable-stayed bridge tower
CN108755698A A kind of big inclined rock base foundation construction method of abrupt slope incompact-deposit bodies
CN108748648A A kind of elongated prestressed pore passage positioning device in the prefabricated longitudinal direction of short line casting box girder segment and construction method
CN107817207A The computational methods and its automatic monitoring device of a kind of foundation ditch infiltration coefficient
CN107816354A Subway station gateway backward is instead dug and chooses high construction method with multi-step
CN107237338A Double-Wall Steel Boxed Cofferdam piecemeal transfers construction method
CN107237323A Major diameter super thick boulder bed forming hole method
CN106043611A Floating reef explosion platform