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Duan Wu

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  • Shanghai, CN
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Patents Grantslast 30 patents

  • Information Patent Grant

    Cutter for cutting tubular parts
    • Patent number 12,017,287
    • Issue date Jun 25, 2024
    • Ridge Tool Company
    • Qi Zhou
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    C-type tubing cutter
    • Patent number 10,052,701
    • Issue date Aug 21, 2018
    • Ridge Tool Company
    • Qi Zhou
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR

Patents Applicationslast 30 patents

  • Information Patent Application

    CUTTER FOR CUTTING TUBULAR PARTS
    • Publication number 20220088689
    • Publication date Mar 24, 2022
    • Ridge Tool Company
    • Qi ZHOU
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Application

    C-TYPE TUBING CUTTER
    • Publication number 20170173710
    • Publication date Jun 22, 2017
    • Ridge Tool Company
    • Qi Zhou
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR