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CHINA RAILWAY 24TH BUREAU GROUP NANCHANG RAILWAY ENG CO LTD

Overview
  • Total Patents
    18
  • GoodIP Patent Rank
    95,258
  • Filing trend
    ⇩ 100.0%
About

CHINA RAILWAY 24TH BUREAU GROUP NANCHANG RAILWAY ENG CO LTD has a total of 18 patent applications. It decreased the IP activity by 100.0%. 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 and measurement are GEARHART AUSTRALIA, CHINA RAILWAY 23 BUREAU GROUP NO 3 ENG CO LTD and GRUEN & BILFINGER AG.

Patent filings in countries

World map showing CHINA RAILWAY 24TH BUREAU GROUP NANCHANG RAILWAY ENG CO LTDs patent filings in countries
# Country Total Patents
#1 China 18

Patent filings per year

Chart showing CHINA RAILWAY 24TH BUREAU GROUP NANCHANG RAILWAY ENG CO LTDs patent filings per year from 1900 to 2020

Focus industries

Top inventors

# Name Total Patents
#1 Zhang Yue 13
#2 Wang Jun 13
#3 Long Zhonghuang 13
#4 Wang Wenxuan 8
#5 Tu Wenliang 8
#6 Sun Zeshun 6
#7 Hu Zhongfei 5
#8 Huang Lei 4
#9 Jing Pengfei 3
#10 Li Pengju 3

Latest patents

Publication Filing date Title
CN112012721A Drilling information monitoring device
CN111691397A Karst tunnel bottom filling bead string type karst cave steel pipe pile grouting hole forming method
CN110331823A A kind of building roof waterproof construction method
CN110344511A Frame structure is built in a kind of room that anti seismic efficiency is good
CN110331629A A kind of highway anti-settling construction method
CN107882076A Underground engineering agent structure and accessory structure interface Seepage water method
CN107740433A A kind of processing method of deep basal pit fluid bowl
CN106958433A Move water treatment facilities and processing method in a kind of karst region
CN106284435A A kind of method preventing Metro station excavation bedding CS central stand column pile from floating
CN106246193A Strong karst high rich water urban shallow tunnel cantilever excavator construction
CN106337412A Construction method for penetrating through goaf deep pile foundation
CN106320355A Mixed slurry grouting water seal method for karst water-rich area
CN106400825A Method for protecting water level in historic ancient well during water plugging in strong karst water-rich region
CN106192769A High pier slding form operation verticality control device and using method thereof
CN106194242A A kind of tunnel dust pelletizing system
CN106321107A Method for controlling overcut tunnel construction of rock cantilever heading machine
CN106150508A Probing construction method in tunnel in a kind of karst strata
CN106223862A Churning driven, the core corer including it and the method for extraction core