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Man-Chi Chang

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  • Taichung, TW
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Patents Grantslast 30 patents

  • Information Patent Grant

    Hand tool assembly
    • Patent number 9,868,195
    • Issue date Jan 16, 2018
    • Man-Chi Chang
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Grant

    Pliers
    • Patent number 9,120,207
    • Issue date Sep 1, 2015
    • Man-Chi Chang
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Grant

    Magnetic retainer with illumination device
    • Patent number 9,068,735
    • Issue date Jun 30, 2015
    • Man-Chi Chang
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Grant

    Hand tool
    • Patent number 8,869,659
    • Issue date Oct 28, 2014
    • Man-Chi Chang
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Grant

    Tools with driving rods
    • Patent number 8,464,616
    • Issue date Jun 18, 2013
    • Man-Chi Chang
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Grant

    Tool container
    • Patent number D653452
    • Issue date Feb 7, 2012
    • Man-Chi Chang
    • D03 - Travel goods and personal belongings
  • Information Patent Grant

    Cutter knife
    • Patent number 6,735,872
    • Issue date May 18, 2004
    • Man-Chi Chang
    • B26 - HAND CUTTING TOOLS CUTTING SEVERING

Patents Applicationslast 30 patents

  • Information Patent Application

    RATCHET WRENCH
    • Publication number 20170106505
    • Publication date Apr 20, 2017
    • Man-Chi Chang
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Application

    HAND TOOL ASSEMBLY
    • Publication number 20170106508
    • Publication date Apr 20, 2017
    • Man-Chi Chang
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Application

    HAND TOOL ASSEMBLY
    • Publication number 20170066120
    • Publication date Mar 9, 2017
    • Man-Chi Chang
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Application

    PIPE SEALING DEVICE
    • Publication number 20140209199
    • Publication date Jul 31, 2014
    • Man-Chi Chang
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    PLIERS
    • Publication number 20140130641
    • Publication date May 15, 2014
    • Man-Chi Chang
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Application

    HAND TOOL
    • Publication number 20140090524
    • Publication date Apr 3, 2014
    • Man-Chi Chang
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Application

    HAND TOOL
    • Publication number 20130255449
    • Publication date Oct 3, 2013
    • Man-Chi Chang
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Application

    MAGNETIC RETAINER WITH ILLUMINATION DEVICE
    • Publication number 20130128597
    • Publication date May 23, 2013
    • Man-Chi Chang
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Application

    MAGNETIC CONTAINER
    • Publication number 20130118936
    • Publication date May 16, 2013
    • Man-Chi Chang
    • A45 - HAND OR TRAVELLING ARTICLES
  • Information Patent Application

    TOOLS WITH DRIVING RODS
    • Publication number 20130074661
    • Publication date Mar 28, 2013
    • Man-Chi Chang
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS