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1ST ENG CO LTD OF CHINA RAILWAY MAJOR BRIDGE ENG GROUP CO LTD

Overview
  • Total Patents
    22
  • GoodIP Patent Rank
    74,323
  • Filing trend
    ⇧ 50.0%
About

1ST ENG CO LTD OF CHINA RAILWAY MAJOR BRIDGE ENG GROUP CO LTD has a total of 22 patent applications. It increased the IP activity by 50.0%. Its first patent ever was published in 2015. It filed its patents most often in China. Its main competitors in its focus markets civil engineering, packaging and shipping and measurement are SICHUAN ROAD AND BRIDGE HUADONG CONSTRUCTION CO LTD, THE 8TH ENG CO LTD CHINA RAILWAY MAJOR BRIDGE ENG GROUP and CCCC SECOND HIGHWAY FIFTH ENG CO LTD.

Patent filings in countries

World map showing 1ST ENG CO LTD OF CHINA RAILWAY MAJOR BRIDGE ENG GROUP CO LTDs patent filings in countries
# Country Total Patents
#1 China 22

Patent filings per year

Chart showing 1ST ENG CO LTD OF CHINA RAILWAY MAJOR BRIDGE ENG GROUP CO LTDs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Zhou Gongjian 11
#2 Yan Bin 7
#3 Xu Chunwang 7
#4 Han Shengli 6
#5 Zhao Faliang 5
#6 Xia Xuejun 5
#7 Dai Jianbing 5
#8 Xie Weijun 4
#9 Geng Keqiang 4
#10 Li Ruimao 4

Latest patents

Publication Filing date Title
CN112160253A Arch rib installation method of continuous rigid frame arch bridge
CN112211209A Water stopping method for locking notch of steel pipe pile
CN112195786A Long-bundle prestressed steel strand pulling device and steel strand pulling method
CN111891921A Turnover device for steel pipe arch segment
CN111322998A Prism device for linear measurement of arch rib of steel pipe arch bridge
CN111335173A Protection platform and method for steel-concrete composite beam bridge deck construction
CN111335172A Movable pier column cross beam prestress tensioning hanging frame construction platform and construction method
CN110878533A System and method for steel beam walking type pushing construction
CN110904860A Large-span flexible steel beam pushing construction method based on stay cable assistance
CN110952450A Adjusting wrench for steel beam shear nails and construction method of adjusting wrench
CN110723658A Bailey beam support dismantling device and method
CN110672079A Rapid and precise lofting guide measurement method
CN110590398A Heating maintenance method for thin-wall concrete of steel-concrete composite beam
CN110241735A The positioning adjustment device and method of adjustment of Cable stayed Bridge Main Tower cable guide pipe
CN109024286A A kind of cast-in-place V-type pier construction method of concrete support wall
CN108824438A A kind of deep basal pit takes indigenous equipment and construction method
CN108373100A Detacher, hoisting appliance and its construction method for transferring steel reinforcement cage
CN108149571A A kind of double suspension cable lightening protection installation installation carriage and its installation method
CN106800245A A kind of floorings lifting suspension bracket, hanging apparatus and hanging method
CN106498961A It is provided with the Yield rainfall relation system and its Yield rainfall relation method of detachable header tank