TREA

Hsin-Huang Tsai

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  • Tainan, TW
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Patents Grantslast 30 patents

  • Information Patent Grant

    Rotary closed-valve vacuum suction device
    • Patent number 11,346,389
    • Issue date May 31, 2022
    • NINE THREE INTERNATIONAL CO., LTD.
    • Kuo-Chang Chen
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Spout interlocking device of a teapot
    • Patent number 9,072,395
    • Issue date Jul 7, 2015
    • Kuo-Chang Chen
    • B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
  • Information Patent Grant

    Kettle
    • Patent number D718970
    • Issue date Dec 9, 2014
    • Kuo-Chang Chen
    • D07 - Equipment for preparing or serving food or drink not elsewhere specified

Patents Applicationslast 30 patents

  • Information Patent Application

    ROTARY CLOSED-VALVE TYPE VACUUM SUCTION DEVICE
    • Publication number 20210404510
    • Publication date Dec 30, 2021
    • NINE THREE INTERNATIONAL CO., LTD.
    • Kuo-Chang CHEN
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    SPOUT INTERLOCKING DEVICE OF A TEAPOT
    • Publication number 20150069093
    • Publication date Mar 12, 2015
    • Kuo-Chang Chen
    • Kuo-Chang CHEN
    • A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...