TREA

JICHANG DU

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  • SHANGHAI, CN
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Patents Applicationslast 30 patents

  • Information Patent Application

    BUOYANCY-TYPE PILLOW WITH COMBINED ACTION OF GAS AND LIQUID MEDIA
    • Publication number 20250031879
    • Publication date Jan 30, 2025
    • SHANGHAI BACKROBO WELLNESS CO., LTD.
    • Wenchao LIU
    • A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
  • Information Patent Application

    SMART MATTRESS
    • Publication number 20230414007
    • Publication date Dec 28, 2023
    • SHANGHAI BACKROBO WELLNESS CO., LTD.
    • WENCHAO LIU
    • A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...