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CHINA RAILWAY CONSTR BRIDGE ENG BUREAU GROUP CO LTD

Overview
  • Total Patents
    195
  • GoodIP Patent Rank
    7,466
  • Filing trend
    ⇩ 3.0%
About

CHINA RAILWAY CONSTR BRIDGE ENG BUREAU GROUP CO LTD has a total of 195 patent applications. It decreased the IP activity by 3.0%. 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, machines and packaging and shipping are KUNMING SURVEY DESIGN AND RES INSTITUTE CO LTD OF CREEC, CHINA RAILWAY SIXTH GROUP TIANJIN RAILWAY CONSTRUCTION CO LTD and WOO KYUNG TECH.

Patent filings in countries

World map showing CHINA RAILWAY CONSTR BRIDGE ENG BUREAU GROUP CO LTDs patent filings in countries
# Country Total Patents
#1 China 195

Patent filings per year

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

Top inventors

# Name Total Patents
#1 Song Weijun 76
#2 Zhang Qing 44
#3 Gong Guofeng 40
#4 Chen Ningxian 39
#5 Li Xianghai 31
#6 Su Chunsheng 28
#7 Sun Baifeng 28
#8 Zhu Linda 27
#9 Zhang Jing 25
#10 Zhu Yongsheng 24

Latest patents

Publication Filing date Title
CN112253179A Informationized two-lining steel template trolley for tunnel engineering
CN112267386A Pushing device and steel box girder pushing method
CN112267387A Pushing equipment and steel box girder pushing method based on pushing equipment
CN112252363A Supporting device and supporting method for movable subway station side wall supporting steel formwork
CN112112079A Longitudinal temporary limiting device on top of cable-stayed bridge tower
CN111980042A Deep foundation pit high pressure-bearing water well and construction method thereof
CN111779513A Duct piece conveying device for subway shield tunnel construction
CN111927485A Slag falling cleaning device in subway tunnel construction
CN111666704A Construction method for optimizing grooving and rock-entering of underground diaphragm wall
CN111593670A Construction method of channel-crossing large-span trestle
CN111608085A All-welded steel truss girder aqueduct erection method
CN111608084A Integral prefabrication and assembly construction method for reinforced concrete arch bridge arch ring segments
CN111287095A Special construction method for main beam of lower-towing super-large bridge
CN111287096A Closure construction method for continuous rigid frame beam of lower-towing super large bridge
CN110820557A Steel truss arch bridge maintenance car
CN110820595A Temporary locking device for closure section of steel truss arch bridge
CN110820599A Steel truss erects and uses displacement device
CN110820598A Longitudinal limiting and pushing device for three-main-truss double-layer steel truss arch bridge steel beam
CN110820782A Novel underwater bottom-sealing-free steel concrete combined hanging box and lowering method thereof
CN110939148A Construction method of double-wall steel suspension box cofferdam serving as drilling platform