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Qinghua CHEN

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  • Hunan, CN
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Patents Grantslast 30 patents

  • Information Patent Grant

    Pre-compression type emergency air spring assembly
    • Patent number 11,073,189
    • Issue date Jul 27, 2021
    • Zhuzhou Times New Material Technology Co., Ltd.
    • Duomin Nong
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...

Patents Applicationslast 30 patents

  • Information Patent Application

    PRE-COMPRESSION TYPE EMERGENCY AIR SPRING ASSEMBLY
    • Publication number 20200393014
    • Publication date Dec 17, 2020
    • ZHUZHOU TIMES NEW MATERIAL TECHNOLOGY CO.,LTD.
    • Duomin NONG
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    EMERGENCY AIR SPRING ASSEMBLY
    • Publication number 20200217387
    • Publication date Jul 9, 2020
    • ZHUZHOU TIMES NEW MATERIAL TECHNOLOGY CO.,LTD.
    • Duomin NONG
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    PREPRESSED EMERGENCY AIR SPRING ASSEMBLY
    • Publication number 20200217388
    • Publication date Jul 9, 2020
    • ZHUZHOU TIMES NEW MATERIAL TECHNOLOGY CO.,LTD.
    • Duomin NONG
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...