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SINOHYDRO ENGINEERING BUREAU 4 CO LTD

Overview
  • Total Patents
    176
  • GoodIP Patent Rank
    8,240
  • Filing trend
    ⇧ 66.0%
About

SINOHYDRO ENGINEERING BUREAU 4 CO LTD has a total of 176 patent applications. It increased the IP activity by 66.0%. Its first patent ever was published in 2014. It filed its patents most often in China. Its main competitors in its focus markets civil engineering, measurement and machine tools are CHINA COMMUNICATIONS 2ND NAVIGATIONAL BUREAU 3RD ENG CO LTD, SHANGHAI FOUNDATION ENG GROUP LTD and LIPSKER ENG.

Patent filings in countries

World map showing SINOHYDRO ENGINEERING BUREAU 4 CO LTDs patent filings in countries
# Country Total Patents
#1 China 176

Patent filings per year

Chart showing SINOHYDRO ENGINEERING BUREAU 4 CO LTDs patent filings per year from 1900 to 2020

Focus industries

Top inventors

# Name Total Patents
#1 Zhang Shengtong 28
#2 Liang Guohui 25
#3 Li Guixing 22
#4 Gao Yang 19
#5 Ren Yiliang 17
#6 Tie Fuchun 15
#7 Liu Jianlong 13
#8 Xi Hao 13
#9 Zheng Maosheng 13
#10 Ma Zhengbin 12

Latest patents

Publication Filing date Title
CN112113845A Soft granule tester of aggregate
CN112065494A Ventilation unit suitable for long and large tunnel construction
CN111851979A Movable operating system for road slope anchor bolt support
CN111912701A Concrete core appearance axial tensile test auxiliary device
CN111851428A Construction method for filling earth dam
CN111851498A Concrete layered construction method
CN111733821A Portable photovoltaic foundation column pours device
CN111852519A Method for installing novel inverted arch precast block capable of improving water resistance between joints
CN111775100A In-tunnel dismantling method for hinged oil cylinder of shield tunneling machine
CN111775099A In-tunnel dismantling method for thrust cylinder of shield tunneling machine
CN111720054A Horizontal base of geological drilling machine for drilling consolidation grouting hole
CN111649634A Short shaft expanding excavation blasting construction method
CN111637806A Medicine charging structure formed by PVC pipe
CN111676989A Expansive soil cutting slope reinforcing structure and construction method
CN111663390A Expansive soil terrace embankment filling structure and construction method
CN111794221A Prestressed anchor cable construction method
CN111576122A Construction method for road in mobile town
CN111648185A Construction method for external connection road of mobile town
CN111663946A Variable-diameter excavation method for cavern
CN111677470A Large-volume concrete large-aperture coring construction method for hydraulic and hydroelectric engineering