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Shiqing Li

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  • Shandong, CN
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Patents Grantslast 30 patents

  • Information Patent Grant

    Helical multilevel cutting tool
    • Patent number 8,215,882
    • Issue date Jul 10, 2012
    • Shiqing Li
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR

Patents Applicationslast 30 patents

  • Information Patent Application

    MICRO-REINFORCED CONCENTRIC TWIST DRILL
    • Publication number 20240278336
    • Publication date Aug 22, 2024
    • Shandong Old Roughneck Machinery Technology Co. Ltd.
    • Shiqing Li
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Application

    HELICAL BIT TOOL
    • Publication number 20110116884
    • Publication date May 19, 2011
    • Shiqing Li
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Application

    HELICAL MULTILEVEL CUTTING TOOL
    • Publication number 20090047084
    • Publication date Feb 19, 2009
    • Shiqing Li
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR