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CHINA RAILWAY 19TH BUREAU GROUP 2ND CO LTD

Overview
  • Total Patents
    26
  • GoodIP Patent Rank
    80,692
  • Filing trend
    ⇩ 100.0%
About

CHINA RAILWAY 19TH BUREAU GROUP 2ND CO LTD has a total of 26 patent applications. It decreased the IP activity by 100.0%. Its first patent ever was published in 2010. It filed its patents most often in China. Its main competitors in its focus markets civil engineering and machines are CHINA RAILWAY 19TH BUREAU GROUP SECOND ENG 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 2ND CO LTDs patent filings in countries
# Country Total Patents
#1 China 26

Patent filings per year

Chart showing CHINA RAILWAY 19TH BUREAU GROUP 2ND CO LTDs patent filings per year from 1900 to 2020

Focus industries

Top inventors

# Name Total Patents
#1 Cao Shuqiang 14
#2 Zhang Yu 13
#3 Xie Jiafei 11
#4 Qu Hua 8
#5 Shen Guanghui 7
#6 Xu Lixin 7
#7 Wang Zhike 5
#8 Liu Fuchun 5
#9 Liu Baihe 4
#10 Zhang Hongjie 3

Latest patents

Publication Filing date Title
CN107701194A A kind of construction method repaired to tunnel after landslide
CN107724239A Super-length prestressed beam construction method
CN106758831A Across railway bridge swivel continuous beam construction method
CN106703815A Construction method of inner excavated abutment
CN106643365A Tunnel waste second lining blasting demolition and repairing construction method
CN106759343A Ring cutting pile tube under water under high pressure
CN106761916A Constructing tunnel water discharge method
CN106193406A Pre-tensioning system cored slab Drawing-Core square steel internal mold construction method
CN105484791A Comprehensive tunnel drainage, precipitation and pressure reduction construction method
CN105484161A Method for constructing cast-in-place panel of T-shaped beam by using steel template
CN105507156A Mounting method of T-beam bridge decking wet joint formwork
CN105422142A Construction method for high and cold region tunnel hole body water resistance
CN105041333A Method for treating tunnel collapse through dugand covered method
CN104989410A Ground-settlement-resisting and collapse-preventing construction method for shallowly buried and darkly excavated tunnel
CN105043175A Water pressure blasting method used in tunnel construction
CN104963689A Three-step seven-procedure excavation method for tunnel
CN104634198A Controlled blasting construction method in mountain excavation close to expressway side
CN104480868A Beam detaching method for road bridge overpassing operation railway
CN104131515A Method for constructing cast-in-place box beam by means of movable formwork
CN103952953A Ballastless track construction method for turnout zone of viaduct station