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CHINA RAILWAY NO 9 GROUP NO 7 ENG CO LTD

Overview
  • Total Patents
    14
  • GoodIP Patent Rank
    117,913
About

CHINA RAILWAY NO 9 GROUP NO 7 ENG CO LTD has a total of 14 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 are ANHUI GOURGEN TRAFFIC CONSTRUCTION CO LTD, CCCC HIGHWAY CONSULTANTS CO and HONG SEOK HEE.

Patent filings in countries

World map showing CHINA RAILWAY NO 9 GROUP NO 7 ENG CO LTDs patent filings in countries
# Country Total Patents
#1 China 14

Patent filings per year

Chart showing CHINA RAILWAY NO 9 GROUP NO 7 ENG CO LTDs patent filings per year from 1900 to 2020

Focus industries

# Industry
#1 Civil engineering

Top inventors

# Name Total Patents
#1 Wang Zhendong 11
#2 Li Zhenbing 8
#3 Yang Shengnan 5
#4 Dong Guang 5
#5 Chen Yunfei 5
#6 Chen Yan 4
#7 Xu Tao 4
#8 Hou Jingyu 4
#9 Feng Shuanglong 4
#10 Peng Hongyan 4

Latest patents

Publication Filing date Title
CN112177007A Deep foundation pit construction method under geological condition of quicksand layer in large disturbance environment
CN112176866A Rectangular steel cable tower construction system and method for large-span asymmetric swivel cable-stayed bridge
CN112031793A Water-rich sand layer shield tunneling muck improvement construction test method
CN112176867A Single-track single-span railway steel truss girder dragging, installing and constructing method and single-track single-span railway
CN112176865A Construction method for splicing and erecting high-speed railway frame pier steel beam in sections
CN111893895A Construction method for changing single-width frame beam into double-width frame beam on bent cap
CN111794110A Large-span bent cap prestressed formwork support construction method
CN111794278A Plugging structure and construction method for plugging reserved hole of middle plate by using plugging structure
CN111424664A Construction method for removing pile head of pre-fractured bored pile
CN111254760A Construction method for laying track slab by using gantry crane
CN110374125A Metro Deep Excavation side wall interlayer method for treating water
CN110344842A Main traffic road pipe curtain construction is worn under Subway tunnel
CN108842782A Based on BIM technology deep pit digging and construction method for supporting
CN108560355A Water storage porous pavement and its laying method