Learn more

CHINA RAILWAY 19TH BUREAU GROUP SECOND ENG CO LTD

Overview
  • Total Patents
    27
  • GoodIP Patent Rank
    60,042
  • Filing trend
    ⇩ 30.0%
About

CHINA RAILWAY 19TH BUREAU GROUP SECOND ENG CO LTD has a total of 27 patent applications. It decreased the IP activity by 30.0%. 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, measurement and machine tools are CHINA RAILWAY 19TH BUREAU GROUP 2ND CO LTD, CHINA RAILWAY 6TH GROUP TAIYUAN RAILWAY CONSTRUCTION CO LTD and SHENZHEN TRANSP DESIGN & RESEARCH INSTITUTE CO LTD.

Patent filings in countries

World map showing CHINA RAILWAY 19TH BUREAU GROUP SECOND ENG CO LTDs patent filings in countries
# Country Total Patents
#1 China 27

Patent filings per year

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

Focus industries

Top inventors

# Name Total Patents
#1 Wan Xiaolin 10
#2 Liu Fuchun 9
#3 Zhang Song 8
#4 Li Fei 8
#5 Zhao Zhongyang 7
#6 Su Ying 7
#7 Cheng He 7
#8 Huang Xin 6
#9 Zhang Haibo 6
#10 Xu Lixin 4

Latest patents

Publication Filing date Title
CN112127913A Longitudinal connection method for profile steel arch centering of gas tunnel
CN111998825A Monitoring and measuring method for shallow buried section of tunnel
CN111997622A Tunnel IV-grade and V-grade weak surrounding rock full-section and micro-step mechanized matching construction method
CN111997623A Tunnel curtain grouting construction method
CN111945570A Bridge erecting machine
CN111101412A Method for monitoring settlement and displacement of railway business line
CN111074795A Construction method for pouring continuous beam in cantilever mode spanning existing railway
CN110984999A Tunnel shaft construction method
CN111005743A Comprehensive treatment method for secondary lining water leakage
CN110331787A The construction method that part concrete is connect with beam body concrete is poured after a kind of enhancing beam body sealing end
CN109487691A Bridge rectangle variable cross-section hollow pier construction method
CN109356030A Bridge double-limb Thin-Wall Piers construction method
CN109252829A Karst method for treating water in team road
CN109236324A A kind of lining trolley injected hole improved method
CN109083004A Utilize the construction method of tool installation bridge expanssion joint rubber fastening band
CN109047596A Bending machine for reinforcing steel bars
CN108330834A The method of the cast-in-place simple supported box beam sectional shelf-unit integral translation of elevated station
CN108166981A Tunnel soft rock large deformation section construction technology
CN108166397A Railway frame bridge construction method
CN108194136A Lining construction method