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Tak-Yiu Wong

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  • Long Beach, CA, US
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Patents Grantslast 30 patents

Patents Applicationslast 30 patents

  • Information Patent Application

    HYDRANT VALVE WITH INTERNAL SHUT-OFF VALVE
    • Publication number 20180073648
    • Publication date Mar 15, 2018
    • RAYCON INDUSTRIES, INC.
    • Tak-Yiu Wong
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    LOCKING MECHANISM FOR UNISEX BALL VALVE COUPLING
    • Publication number 20170102093
    • Publication date Apr 13, 2017
    • RAYCON INDUSTRIES, INC.
    • Tak-Yiu Wong
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    LOCKING MECHANISM FOR UNISEX BALL VALVE COUPLING
    • Publication number 20150097131
    • Publication date Apr 9, 2015
    • RAYCON INDUSTRIES, INC.
    • Tak-Yiu Wong
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    LOCKING MECHANISM FOR UNISEX BALL VALVE COUPLING
    • Publication number 20150021504
    • Publication date Jan 22, 2015
    • RAYCON INDUSTRIES, INC.
    • Tak-Yiu Wong
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    LOCKING MECHANISM FOR UNISEX BALL VALVE COUPLING
    • Publication number 20130193361
    • Publication date Aug 1, 2013
    • RAYCON INDUSTRIES, INC.
    • Tak-Yiu Wong
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    LOCKING MECHANISM FOR UNISEX BALL VALVE COUPLING
    • Publication number 20120007007
    • Publication date Jan 12, 2012
    • RAYCON INDUSTRIES INC.
    • Tak-Yiu Wong
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...