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person:(Yan, Lei)

    Underground pneumatic monorail hoist and intelligent control system thereof

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    WANG YAN / LAO FENGXI / ZHENG YONG et al. | European Patent Office | 2024

    Power capstan system for assisting logging

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    GUO KANGHUA / ZHOU CHENGQUAN / ZHAO LEI et al. | European Patent Office | 2024

    Mining area ground surface gas overflow dynamic monitoring and intelligent safety evaluation method

    Free access
    SI HONGTAO / ZHU DONGXUE / MA LEI et al. | European Patent Office | 2024

    Digital twin transportation system and method for underground unmanned trackless vehicle

    Free access
    BAO JIUSHENG / WANG KAI / YIN YAN et al. | European Patent Office | 2023

    Nuclear power deep sea mining ship

    Free access
    GU YINGBIN / HU ANKANG / YAN LEI et al. | European Patent Office | 2023

    Shaft tunnel portal detection auxiliary device

    Free access
    TANG DINGDING / LU ZHONGXING / GUO ERWEI et al. | European Patent Office | 2023

    Prefabricated mid-partition transportation structure and transportation method

    Free access
    QIU YAN / SONG XINGBAO / LI YONG et al. | European Patent Office | 2023