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CHINA RAILWAY NO 2 GROUP

Overview
  • Total Patents
    139
  • GoodIP Patent Rank
    10,295
  • Filing trend
    ⇧ 350.0%
About

CHINA RAILWAY NO 2 GROUP has a total of 139 patent applications. It increased the IP activity by 350.0%. Its first patent ever was published in 2017. It filed its patents most often in China. Its main competitors in its focus markets civil engineering, materials and metallurgy and computer technology are CHINA TIESIJU CIVIL ENG GROUP CO LTD, BEIJING MUNICIPAL CONSTR CO LTD and ERCHU CO LTD OF CHINA RAILWAY TUNNEL GROUP.

Patent filings in countries

World map showing CHINA RAILWAY NO 2 GROUPs patent filings in countries
# Country Total Patents
#1 China 139

Patent filings per year

Chart showing CHINA RAILWAY NO 2 GROUPs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Chen Qiang 19
#2 Chen Zhuo 16
#3 He Kaiwei 11
#4 Zhao Wei 10
#5 Cao Lang 9
#6 Hu Lisheng 7
#7 Yang Qin 6
#8 Zheng Juntao 6
#9 Deng Xiaoqiu 6
#10 Chen Liang 6

Latest patents

Publication Filing date Title
CN112195935A Bearing platform foundation pit rapid supporting device and construction method
CN112229907A Steel pipe concrete fills quality and detects transducer installation device
CN112228086A Shield tail outer side grout stopping device and construction method thereof
CN112127903A Slotting device for installing robot to operate
CN112031119A Large-section flood discharge ditch for mountainous terrain and construction method thereof
CN111851310A Heating and heat-insulating system, heat-insulating method and construction method for winter construction pouring template
CN111827339A Reinforcing structure for beam-column type support foundation and construction method
CN111827125A Accurate adjustment method and device for installation line shape of steel upright post of arch bridge
CN111827124A T-beam transverse prestress tensioning auxiliary device, mounting method and using method
CN111828050A Construction method for small-section traffic hole to enter thin and high special-shaped space structure diversion lock chamber
CN111790516A Circulating type building slurry hydraulic separation system and method
CN111794570A Prefabricated assembly type safe learning experience hall and installation method thereof
CN111794231A Device and method for breaking foundation pile head
CN111798479A Core drilling sampling data processing method and system
CN111720127A Jacking platform for shield station crossing, shield station crossing system and construction method
CN111520160A A dish detains braced system and construction system for open cut tunnel
CN111535823A Shield construction method for pipe gallery working well
CN111535260A Dam body reinforcing structure system and construction method thereof
CN111535089A Subway engineering inspection pit upright column concrete construction auxiliary device and using method
CN111689733A Low-hydration-heat concrete and preparation method thereof