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Ho T. Chen

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  • Tainan, TW
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Patents Grantslast 30 patents

  • Information Patent Grant

    Bit holder
    • Patent number 8,052,156
    • Issue date Nov 8, 2011
    • Ho-Tien Chen
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    Screw locking tool
    • Patent number 7,921,753
    • Issue date Apr 12, 2011
    • Ho-Tien Chen
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Grant

    Torque releasing clutch for a screw driver blade
    • Patent number 7,735,400
    • Issue date Jun 15, 2010
    • Ho-Tien Chen
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Grant

    Bit holder
    • Patent number 7,175,185
    • Issue date Feb 13, 2007
    • Ho-Tien Chen
    • Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
  • Information Patent Grant

    Tapping screw
    • Patent number 7,090,452
    • Issue date Aug 15, 2006
    • Ho-Tien Chen
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Screw band with washers
    • Patent number 6,811,366
    • Issue date Nov 2, 2004
    • Ho-Tien Chen
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Tool combining rod
    • Patent number 6,745,652
    • Issue date Jun 8, 2004
    • Ho-Tien Chen
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Grant

    Screw band
    • Patent number 5,522,687
    • Issue date Jun 4, 1996
    • Ho T. Chen
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Automatic screw-driving device
    • Patent number 5,284,074
    • Issue date Feb 8, 1994
    • Ho T. Chen
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS

Patents Applicationslast 30 patents

  • Information Patent Application

    METHOD FOR THE PRODUCTION OF A STRIP FOR FASTENING ELEMENTS
    • Publication number 20150174640
    • Publication date Jun 25, 2015
    • HILTI AKTIENGESELLSCHAFT
    • Thomas Foser
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Application

    CLUTCH DEVICE FOR A SCREW DRIVER
    • Publication number 20120080285
    • Publication date Apr 5, 2012
    • Ho-Tien Chen
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    SCREW LOCKING TOOL
    • Publication number 20100269641
    • Publication date Oct 28, 2010
    • HO-TIEN CHEN
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Application

    ADJUSTABLE DRILLING EDGE-WIDENING AND SCREW DRIVING TOOL SET
    • Publication number 20100183387
    • Publication date Jul 22, 2010
    • HO-TIEN CHEN
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Application

    SELF-DRILLING SCREW
    • Publication number 20100183400
    • Publication date Jul 22, 2010
    • Ho-Tien Chen
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    BIT HOLDER
    • Publication number 20100007102
    • Publication date Jan 14, 2010
    • Ho-Tien Chen
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Application

    SCREW BAND LOCKING DEVICE
    • Publication number 20090314143
    • Publication date Dec 24, 2009
    • Ho-Tien Chen
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Application

    TORQUE RELEASING CLUTCH FOR A SCREW DRIVER BLADE
    • Publication number 20090049961
    • Publication date Feb 26, 2009
    • Ho-Tien Chen
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Application

    Bit holder
    • Publication number 20060181033
    • Publication date Aug 17, 2006
    • Ho-Tien Chen
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Application

    Screw band with washers
    • Publication number 20040179919
    • Publication date Sep 16, 2004
    • Ho-Tien Chen
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    Tapping screw
    • Publication number 20040146377
    • Publication date Jul 29, 2004
    • Ho-Tien Chen
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    Tool combining rod
    • Publication number 20040020335
    • Publication date Feb 5, 2004
    • Ho-Tien Chen
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Application

    Screw with a pointed end
    • Publication number 20030235483
    • Publication date Dec 25, 2003
    • Ho-Tien Chen
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...