TREA

Kai-Leung Yung

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  • Kowloon, HK
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Patents Grantslast 30 patents

  • Information Patent Grant

    Vertical micro-injection machine
    • Patent number 7,258,543
    • Issue date Aug 21, 2007
    • The Hong Kong Polytechnic University
    • Kai-Leung Yung
    • B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
  • Information Patent Grant

    Impact mechanism for a hammer drill
    • Patent number 7,137,458
    • Issue date Nov 21, 2006
    • The Hong Kong Polytechnic University
    • Kai-Leung Yung
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS

Patents Applicationslast 30 patents

  • Information Patent Application

    Impact mechanism for a hammer drill
    • Publication number 20060102364
    • Publication date May 18, 2006
    • Kai-Leung Yung
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS