TREA

Shi CHENG

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  • Suzhou, CN
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Patents Grantslast 30 patents

  • Information Patent Grant

    Bailer-type long-shaft pump and application thereof
    • Patent number 11,118,586
    • Issue date Sep 14, 2021
    • JIANGSU TAIHU PLANNING AND DESIGN INSTITUTE OF WATER RESOURCES CO., LTD.
    • Yufeng Chang
    • F03 - MACHINES OR ENGINES FOR LIQUIDS WIND, SPRING WEIGHT AND MISCELLANEOUS M...

Patents Applicationslast 30 patents

  • Information Patent Application

    BAILER-TYPE LONG-SHAFT PUMP AND APPLICATION THEREOF
    • Publication number 20200240416
    • Publication date Jul 30, 2020
    • JIANGSU TAIHU PLANNING AND DESIGN INSTITUTE OF WATER RESOURCES CO., LTD.
    • Yufeng CHANG
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...