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CRRC CONSTRUCTION ENG CO LTD

Overview
  • Total Patents
    48
  • GoodIP Patent Rank
    31,460
  • Filing trend
    ⇩ 33.0%
About

CRRC CONSTRUCTION ENG CO LTD has a total of 48 patent applications. It decreased the IP activity by 33.0%. Its first patent ever was published in 2016. It filed its patents most often in China, WIPO (World Intellectual Property Organization) and United States. Its main competitors in its focus markets civil engineering, transport and packaging and shipping are GUNYANG C & E CO LTD, BERNOLD JEAN and CHINA RAILWAY 22ND BUREAU GROUP RAIL ENG CO LTD.

Patent filings in countries

World map showing CRRC CONSTRUCTION ENG CO LTDs patent filings in countries

Patent filings per year

Chart showing CRRC CONSTRUCTION ENG CO LTDs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Wang Meng 22
#2 Li Yong 15
#3 Yin Lida 7
#4 Qin Jiuyun 6
#5 Wang Cheng 6
#6 Shang Xiangui 6
#7 Guo Yushan 6
#8 Tian Lei 6
#9 Guan Xia 5
#10 Wang Yapeng 5

Latest patents

Publication Filing date Title
CN111472389A Open excavation construction method and structure for rebuilding existing tunnel into double-layer tunnel
CN111441794A Underground excavation construction method and structure for rebuilding existing tunnel into double-layer tunnel
CN111074942A Large-span rectangular underground station and construction method thereof
CN111074941A Large-span composite structural underground station and construction method thereof
CN110374629A A kind of sqouynd absorption lowering noise tunnel duct piece and its method for prefabricating
CN109519189A A kind of tunnel piercing device
CN109519190A A kind of rope saw mole and driving method
CN109653337A A kind of novel sponge urban rainwater well and drainage system
CN109523942A A kind of optical projection system and method being mounted on subway platform door
CN109812292A A kind of waterproof method and structure of the unimpeded combination based on existing tunnel
CN109465963A A kind of integrated blender of construction concrete mixing plant
CN109616954A A kind of troughing roller formula cable nozzle sheath device
CN108555084A A kind of Bidirectional mobile rail cambering machine
CN108876184A A kind of security risk evaluations and method for early warning of Railway Tunnel operation phase
CN108532386A A kind of mobile steel rail bending machine
CN108755742A Deformation joint attachment device and its application method at a kind of civil engineering structure plate
CN108729924A A kind of urban hard rock tunnel mechanical excavation rapid constructing method
CN108221838A Track removal of impurities, snow removing trolley
CN107965328A Underground station whole dark digging construction method
CN108222981A Bright excavation construction method after underground station is first dark