TREA

Hsiu-Hua CHANG

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  • Taichung City, TW
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Patents Grantslast 30 patents

  • Information Patent Grant

    Hammer head
    • Patent number D806494
    • Issue date Jan 2, 2018
    • Hsiu-Hua Chang
    • D08 - Tools and hardware
  • Information Patent Grant

    Identifiable tool
    • Patent number 9,339,918
    • Issue date May 17, 2016
    • Hsiu-Hua Chang
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Grant

    Claw hammer
    • Patent number 9,327,394
    • Issue date May 3, 2016
    • Hsiu-Hua Chang
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Grant

    Hammer head
    • Patent number D743231
    • Issue date Nov 17, 2015
    • Hsiu-Hua Chang
    • D08 - Tools and hardware
  • Information Patent Grant

    Toolbox
    • Patent number D715548
    • Issue date Oct 21, 2014
    • Hsiu-Hua Chang
    • D03 - Travel goods and personal belongings

Patents Applicationslast 30 patents

  • Information Patent Application

    SWITCH FOR USE IN A SELECTIVE ONE-WAY WRENCH
    • Publication number 20170014977
    • Publication date Jan 19, 2017
    • Hsiu-Hua Chang
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Application

    Wrench
    • Publication number 20160271765
    • Publication date Sep 22, 2016
    • Hsiu-Hua Chang
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Application

    Self-Cushioning Hammer
    • Publication number 20160107301
    • Publication date Apr 21, 2016
    • Hsiu-Hua Chang
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Application

    Claw Hammer
    • Publication number 20150328758
    • Publication date Nov 19, 2015
    • Hsiu-Hua Chang
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Application

    Identifiable Tool
    • Publication number 20150158152
    • Publication date Jun 11, 2015
    • Hsiu-Hua Chang
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Application

    Hammer with Buffer Assembly
    • Publication number 20140260812
    • Publication date Sep 18, 2014
    • Hsiu-Hua CHANG
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Application

    Multi-Purpose Hammer
    • Publication number 20140264208
    • Publication date Sep 18, 2014
    • Hsiu-Hua CHANG
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Application

    Sheath for Tip of Tool
    • Publication number 20140255626
    • Publication date Sep 11, 2014
    • Hsiu-Hua CHANG
    • B26 - HAND CUTTING TOOLS CUTTING SEVERING
  • Information Patent Application

    Weight sorter
    • Publication number 20060169497
    • Publication date Aug 3, 2006
    • Hsiu-An Chang
    • B07 - SEPARATING SOLIDS FROM SOLIDS SORTING