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Dongze Yang

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  • Wuhan, CN
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Patents Grantslast 30 patents

  • Information Patent Grant

    Manufacture of roller cone drill bits
    • Patent number 12,065,884
    • Issue date Aug 20, 2024
    • Taurex Drill Bits, LLC
    • Yongzhong Cai
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR

Patents Applicationslast 30 patents

  • Information Patent Application

    MANUFACTURE OF ROLLER CONE DRILL BITS
    • Publication number 20220178210
    • Publication date Jun 9, 2022
    • King Dream Public Limited Company
    • Yongzhong Cai
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR