1–6 of 6 hits
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    Six-rotor unmanned aerial vehicle with arms in double-layer staggered arrangement and capable of being transversely folded

    Free access
    HAO ZHONGHU / WANG QIANG / WANG YONGLI | European Patent Office | 2021

    Self-adaptive follow-up traction mechanism for mooring cable of mooring unmanned aerial vehicle

    Free access
    HAO ZHONGHU / WANG QIANG / YUE SONGCHEN | European Patent Office | 2020

    Compact type mooring cable take-up and pay-off winch

    Free access
    HAO ZHONGHU / WANG QIANG / GAO JIACHI et al. | European Patent Office | 2020

    Novel foldable six-rotor unmanned aerial vehicle

    Free access
    HAO ZHONGHU / WANG QIANG / LI YIXIAN et al. | European Patent Office | 2022