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Feng LI

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  • Qingdao, Shandong, CN
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Patents Grantslast 30 patents

Patents Applicationslast 30 patents

  • Information Patent Application

    FERTILIZER PRODUCTION SYSTEM
    • Publication number 20190240632
    • Publication date Aug 8, 2019
    • WUZHOUFENG AGRICULTURAL SCIENCE & TECHNOLOGY CO., LTD.
    • Xuejiang WANG
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • Information Patent Application

    LIMIT DETECTION SYSTEM FOR RAILWAY VEHICLE
    • Publication number 20170067733
    • Publication date Mar 9, 2017
    • CRRC QINGDAO SIFANG CO., LTD.
    • Jingli WEI
    • G01 - MEASURING TESTING