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CHINA COMMUNICATIONS 2ND NAVIGATIONAL BUREAU 3RD ENG CO LTD

Overview
  • Total Patents
    35
  • GoodIP Patent Rank
    44,454
  • Filing trend
    ⇩ 33.0%
About

CHINA COMMUNICATIONS 2ND NAVIGATIONAL BUREAU 3RD ENG CO LTD has a total of 35 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. Its main competitors in its focus markets civil engineering and machine tools are SINOHYDRO ENGINEERING BUREAU 4 CO LTD, STANDARD DEV CO LTD and SHANGHAI FOUNDATION ENG GROUP LTD.

Patent filings in countries

World map showing CHINA COMMUNICATIONS 2ND NAVIGATIONAL BUREAU 3RD ENG CO LTDs patent filings in countries
# Country Total Patents
#1 China 35

Patent filings per year

Chart showing CHINA COMMUNICATIONS 2ND NAVIGATIONAL BUREAU 3RD ENG CO LTDs patent filings per year from 1900 to 2020

Focus industries

Top inventors

# Name Total Patents
#1 Feng Jianhua 8
#2 Gu Liang 8
#3 Wang Peng 7
#4 Liu Zhongyou 7
#5 Xiao Jia 6
#6 Ma Chao 5
#7 Mao Binghai 5
#8 Leng Yuan 4
#9 Fang Zhen 4
#10 Chen Long 4

Latest patents

Publication Filing date Title
CN112281771A Fishway vault movable formwork support and displacement method
CN112227157A Automatic spreading device for geotechnical material
CN111895971A Roadbed construction measuring instrument
CN111636877A Manufacturing method of forced centering bracket with pre-buried sliding groove and T-shaped bolt
CN111188275A Method for quickly erecting steel-concrete combined temporary bridge spanning existing tunnel U-shaped groove
CN110985076A Device and method for stabilizing tunnel face in normal-pressure opening operation of shield tunneling machine
CN110847324A Construction method for lining pipe of drainage pipeline
CN110984236A Construction method for connecting point of sleeved type light and shade excavation structural portal interface
CN110529156A Tunnel piercing shield launching section section of jurisdiction transportation system and method
CN110184995A The pile sinking process of major diameter fore shaft steel-pipe pile
CN109707002A Large-scale water intake is accurately positioned sinking mounting device and method
CN109371822A The motor-driven template of linear type rectangular pier and construction method
CN109630144A The method of the shield machine replacement twice shield tail brush ring of water rich strata constructing tunnel
CN108825153A Steel-pipe pile hole cleaning device and borehole cleaning method
CN108533205A Chopping bit fishing tool and method
CN108543991A The up-hole special tooling under concrete roof
CN108532955A Hydraulic control opens and closes concrete hopper and method
CN107965616A The underwater aqueduct transportation by driving device and method of major diameter
CN107858937A The hanging-basket walking device and forward method that can be turned to
CN107859062A The earth-filling method of underground pipe gallery