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Wenkai Zu

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  • Nanjing, Jiangsu, CN
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Patents Grantslast 30 patents

  • Information Patent Grant

    Double sliding-plug door system
    • Patent number 10,711,509
    • Issue date Jul 14, 2020
    • NANJING KANGNI MECHANICAL & ELECTRICAL CO., LTD.
    • Xiang Shi
    • E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES

Patents Applicationslast 30 patents

  • Information Patent Application

    DRIVE DEVICE FOR INNER SWINGING DOOR
    • Publication number 20200378169
    • Publication date Dec 3, 2020
    • NANJING KANGNI MECHANICAL & ELECTRICAL CO., LTD.
    • Xiang SHI
    • E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
  • Information Patent Application

    ELECTRIC DOUBLE PANEL INWARD GLIDING DOOR AND INWARD GLIDING DOOR D...
    • Publication number 20200308891
    • Publication date Oct 1, 2020
    • NANJING KANGNI MECHANICAL & ELECTRICAL CO., LTD.
    • Xiang SHI
    • E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
  • Information Patent Application

    DOUBLE SLIDING-PLUG DOOR SYSTEM
    • Publication number 20190024440
    • Publication date Jan 24, 2019
    • NANJING KANGNI MECHANICAL & ELECTRICAL CO., LTD.
    • Xiang Shi
    • E06 - DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL LADDERS