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Shengjin Rao

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  • Xiamen, CN
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Patents Grantslast 30 patents

  • Information Patent Grant

    Drainage control device
    • Patent number 11,898,336
    • Issue date Feb 13, 2024
    • Bingxing Huang
    • E03 - WATER SUPPLY SEWERAGE

Patents Applicationslast 30 patents

  • Information Patent Application

    DRAINAGE SYSTEM FOR PRESSURE-ASSISTED FLUSH WATER TANK
    • Publication number 20230183961
    • Publication date Jun 15, 2023
    • ECO (XIAMEN) TECHNOLOGY INC.
    • Bingxing Huang
    • E03 - WATER SUPPLY SEWERAGE
  • Information Patent Application

    DRAINAGE CONTROL DEVICE
    • Publication number 20230183959
    • Publication date Jun 15, 2023
    • ECO (XIAMEN) TECHNOLOGY INC.
    • Bingxing Huang
    • E03 - WATER SUPPLY SEWERAGE