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CHINA RAILWAY DEVELOPMENT INVEST GROUP CO LTD

Overview
  • Total Patents
    11
  • GoodIP Patent Rank
    162,107
About

CHINA RAILWAY DEVELOPMENT INVEST GROUP CO LTD has a total of 11 patent applications. Its first patent ever was published in 2018. It filed its patents most often in China. Its main competitors in its focus markets civil engineering, measurement and chemical engineering are YAO YANMING, YOON IN BYUNG and KOEZLEKEDESI METRO EPITOE.

Patent filings in countries

World map showing CHINA RAILWAY DEVELOPMENT INVEST GROUP CO LTDs patent filings in countries
# Country Total Patents
#1 China 11

Patent filings per year

Chart showing CHINA RAILWAY DEVELOPMENT INVEST GROUP CO LTDs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Yang Xiaolong 8
#2 Qu Dongkui 6
#3 Xiang Zhonghua 6
#4 Chen Xianzhi 6
#5 Sun Quan 6
#6 Li Minghui 5
#7 Dai Bin 5
#8 Su Ting 5
#9 Xu Zan 5
#10 Xu Zhengshuai 5

Latest patents

Publication Filing date Title
CN110986844A Displacement meter installation assembly for underground displacement monitoring
CN110820723A Construction control method for underground diaphragm wall of deep and large foundation pit support structure of station
CN110847155A Waterproof seam pretreatment method in underground continuous wall construction process
CN110779665A Prefabricated pipe gallery seam water seepage detection method based on piezoelectric impedance
CN110617075A Shield tunneling cutter head adjacent to sensitive building with ultra-small distance
CN110645005A High-water-rich round gravel stratum earth pressure balance shield rapid tunneling construction method
CN110747862A Construction method of subway station deep foundation pit support structure
CN110578525A micro-disturbance construction method for crossing operation subway tunnel by overlapping shield tunnel
CN110629775A Construction method for quickly sealing foundation pit dewatering well
CN110629776A Foundation pit dewatering well with backwashing function and backwashing method thereof
CN109749748A A kind of rich water round gravel stratum shield sediment improvement method and sediment improvement agent