1–20 of 1,608 hits
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    Method and system for identifying state of parking space in sheltered area

    Free access
    ZHANG LEI | European Patent Office | 2024

    Unmanned aerial vehicle balancing device

    Free access
    ZHANG LEI | European Patent Office | 2021

    Rapid ship launching sliding plate laying device

    Free access
    ZHANG LEI | European Patent Office | 2020

    Size-adjustable field ridge forming fixed mold device

    Free access
    ZHANG LEI | European Patent Office | 2021

    Emergency rescue multi-rotor unmanned aerial vehicle

    Free access
    ZHANG LEI | European Patent Office | 2021

    Multi-rotor aircraft with variable rotors

    Free access
    ZHANG LEI | European Patent Office | 2020

    Parking space state publishing method and system

    Free access
    ZHANG LEI | European Patent Office | 2024

    Behavioral Foundation of Route Choice and Traffic Assignment

    Comparison of Principles of User Equilibrium Traffic Assignment Under Different Behavioral Assumptions
    Zhang, Lei | Transportation Research Record | 2011

    Automobile emergency starting power supply device and emergency starting method

    Free access
    ZHANG LEI | European Patent Office | 2022

      AUTOMOBILE EMERGENCY STARTING POWER SUPPLY DEVICE AND EMERGENCY STARTING METHOD

      Free access
      ZHANG LEI | European Patent Office | 2022

    Ship monitoring method based on AIS and radar linkage

    Free access
    ZHANG LEI | European Patent Office | 2022

    TIRE ABNORMALITY DETECTION METHOD AND APPARATUS

    Free access
    ZHANG LEI | European Patent Office | 2022

    Dynamic variable speed limit control method

    Free access
    ZHANG LEI | European Patent Office | 2020

    Vehicle compartment cover and vehicle

    Free access
    ZHANG LEI | European Patent Office | 2020

    Aircraft cabin door connecting rod constant force method and device

    Free access
    ZHANG LEI | European Patent Office | 2020

    Unmanned aerial vehicle torque arm rotor mechanism

    Free access
    ZHANG LEI | European Patent Office | 2021