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Hongjia Wang

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  • Shanghai, CN
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Patents Grantslast 30 patents

  • Information Patent Grant

    Step drill bit and method for drilling a workpiece by using a step...
    • Patent number 12,053,831
    • Issue date Aug 6, 2024
    • Hongjia Wang
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    Twist drill
    • Patent number 11,865,627
    • Issue date Jan 9, 2024
    • Hongjia Wang
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    Twist drill
    • Patent number 11,554,424
    • Issue date Jan 17, 2023
    • Hongjia Wang
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    Twist drill
    • Patent number 11,007,583
    • Issue date May 18, 2021
    • Hongjia Wang
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    Twist drill
    • Patent number 11,007,584
    • Issue date May 18, 2021
    • Hongjia Wang
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    Highly efficient, anti-vibration, durable rotating file with variab...
    • Patent number 9,884,381
    • Issue date Feb 6, 2018
    • Hongjia Wang
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR

Patents Applicationslast 30 patents