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CHINA RAILWAY 19TH BUREAU GROUP 1ST ENG CO LTD

Overview
  • Total Patents
    24
  • GoodIP Patent Rank
    68,450
About

CHINA RAILWAY 19TH BUREAU GROUP 1ST ENG CO LTD has a total of 24 patent applications. 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 measurement are CCCC FOURTH HIGHWAY ENGINEERING CO LTD, CCCC FIRST HIGHWAY ENGINEERING CO LTD and HONGG CO LTD.

Patent filings in countries

World map showing CHINA RAILWAY 19TH BUREAU GROUP 1ST ENG CO LTDs patent filings in countries
# Country Total Patents
#1 China 24

Patent filings per year

Chart showing CHINA RAILWAY 19TH BUREAU GROUP 1ST ENG CO LTDs patent filings per year from 1900 to 2020

Focus industries

Top inventors

# Name Total Patents
#1 Zhang Xingchun 7
#2 Yang Yulin 7
#3 Zhou Weixia 7
#4 Li Jinyong 6
#5 Lu Mingxi 5
#6 Zhou Jiwei 5
#7 Wang Quan 4
#8 Gao Feng 4
#9 Yu Yang 4
#10 Min Shuliang 4

Latest patents

Publication Filing date Title
CN111593677A Railway pier top surrounding hanging basket safe operation platform
CN111676825A Construction process of bridge down-rotation swivel bearing system
CN111593729A Detachable protective cylinder
CN111677285A Bridge pier column concrete conduit method pouring construction process
CN111021265A BIM technology-based railway large-span continuous beam swivel construction control method
CN111021222A Construction method of large-span concrete-filled steel tube tied arch bridge
CN110886621A Tunnel adverse slope is with portable drainage device that takes out in succession
CN110886238A Post-tensioning simply supported box girder prestress tensioning trolley
CN110886151A Rubber insulation buckle for binding reinforcing steel bars of ballastless track bed plate
CN110882869A Automatic spraying device used on concrete construction sidewalk
CN110883799A Device for cutting off expansion joint foam plate of CRTS III type ballastless track bed plate
CN109680925A A kind of steel form automatic heating device
CN108931422A Middle compression often consolidates the measuring method of soil base lateral extrusion deformation under embankment load
CN108481535A A kind of perfusion of plate-type ballastless track self-compacting concrete, peep hole curing means
CN108487081A A kind of protective device of Bridge Rotation Construction Technique steel strand wires
CN106761828A A kind of lining trolley
CN106523032A Sudden-change early-warning device for weak surrounding rock excavating through tunnel machine
CN106760533A A kind of dabbing chassis
CN106760539A A kind of grouting device
CN106702996A Settlement-reducing mounting method of layered settlement meter in deep soft soil layer