1–20 of 235 hits
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    Stepless speed change bicycle chain wheel

    Free access
    XU YAN | European Patent Office | 2021

    Railway turnout switch machine

    Free access
    XU YAN | European Patent Office | 2021

    Protective foldable unmanned aerial vehicle trunk structure

    Free access
    XU YAN | European Patent Office | 2021

    Bridge safety system based on new information technology

    Free access
    XU YAN | European Patent Office | 2021

    Adjustable charging pile for new energy automobile

    Free access
    XU YAN | European Patent Office | 2021

    Orthopedic nursing walking aid facilitating walking exercise of orthopedic patient

    Free access
    ZHANG XIAOYAN / XU YAN | European Patent Office | 2023

    Container framework and vehicle

    Free access
    LI HAILIAN / XU YAN | European Patent Office | 2024

    Derailed sail device deployable supporting structure based on Kresling paper folding

    Free access
    XU YAN / SUN JIAN | European Patent Office | 2024

    AIS ship track extrapolation method for video monitoring system

    Free access
    NI KANJUN / XU YAN | European Patent Office | 2020

    goods loading and unloading system for stainless steel chemical ship

    Free access
    CHENG WENCHAO / XU YAN | European Patent Office | 2021