TREA

Chengkai Zhang

Follow

Person

  • Steinhausen, CH
People

Patents Grantslast 30 patents

  • Information Patent Grant

    Foldable mechanism and infant carrier thereof
    • Patent number 11,805,920
    • Issue date Nov 7, 2023
    • Wonderland Switzerland AG
    • Chengkai Zhang
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...

Patents Applicationslast 30 patents

  • Information Patent Application

    FOLDABLE MECHANISM AND INFANT CARRIER THEREOF
    • Publication number 20240016310
    • Publication date Jan 18, 2024
    • Wonderland Switzerland AG
    • Chengkai Zhang
    • A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
  • Information Patent Application

    FOLDABLE MECHANISM AND INFANT CARRIER THEREOF
    • Publication number 20230018243
    • Publication date Jan 19, 2023
    • Wonderland Switzerland AG
    • Chengkai Zhang
    • A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...