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Shihui Duan

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  • Heilongjiang, CN
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Patents Grantslast 30 patents

  • Information Patent Grant

    Bogie and axle box suspension positioning device thereof
    • Patent number 10,086,851
    • Issue date Oct 2, 2018
    • CRRC Qiqihar Rolling Stock Co., Ltd.
    • Shifeng Xu
    • B61 - RAILWAYS
  • Information Patent Grant

    Bogie
    • Patent number 8,561,546
    • Issue date Oct 22, 2013
    • Qiqihar Railway Rolling Stock Co., Ltd.
    • Zhenming Liu
    • B61 - RAILWAYS

Patents Applicationslast 30 patents

  • Information Patent Application

    BOGIE AND AXLE BOX SUSPENSION POSITIONING DEVICE THEREOF
    • Publication number 20150367867
    • Publication date Dec 24, 2015
    • Qiqihar Railway Rolling Stock Co., Ltd. Dalian R&D Centre
    • Shifeng XU
    • B61 - RAILWAYS
  • Information Patent Application

    RAILWAY WAGON BOGIE AND RAILWAY WAGON
    • Publication number 20130255532
    • Publication date Oct 3, 2013
    • QIQIHAR RAILWAY ROLLING STOCK CO., LTD
    • Zhenming Liu
    • B61 - RAILWAYS
  • Information Patent Application

    BOGIE
    • Publication number 20130008337
    • Publication date Jan 10, 2013
    • QIQIHAR RAILWAY ROLLING STOCK CO., LTD
    • Zhenming Liu
    • B61 - RAILWAYS