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Chih-Ching Hsien

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  • Taichung, TW
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Patents Grantslast 30 patents

  • Information Patent Grant

    Ratchet wrench handle
    • Patent number D592024
    • Issue date May 12, 2009
    • Chih-Ching Hsien
    • D08 - Tools and hardware
  • Information Patent Grant

    Ratchet wrench handle
    • Patent number D566496
    • Issue date Apr 15, 2008
    • Chih-Ching Hsien
    • D08 - Tools and hardware
  • Information Patent Grant

    Adjustable spanner
    • Patent number 7,240,591
    • Issue date Jul 10, 2007
    • Chih-Ching Hsien
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Grant

    Sleeve
    • Patent number D539131
    • Issue date Mar 27, 2007
    • Chih-Ching Hsien
    • D08 - Tools and hardware
  • Information Patent Grant

    Pipe wrench having a fixed positioning ring
    • Patent number 7,185,564
    • Issue date Mar 6, 2007
    • Chih-Ching Hsien
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Grant

    Extendable handles for hand tools
    • Patent number 7,178,431
    • Issue date Feb 20, 2007
    • Chih-Ching Hsien
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Grant

    Quick release device for releasing screw bit from socket
    • Patent number 7,131,358
    • Issue date Nov 7, 2006
    • Chih-Ching Hsien
    • Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
  • Information Patent Grant

    Ratchet control structure of bidirectional ratchet spanner
    • Patent number 7,121,171
    • Issue date Oct 17, 2006
    • Chih-Ching Hsien
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Grant

    Dual function wrench
    • Patent number 7,117,770
    • Issue date Oct 10, 2006
    • Chih-Ching Hsien
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Grant

    Slide stop device of a hexagonal spanner
    • Patent number 7,104,168
    • Issue date Sep 12, 2006
    • Chih-Ching Hsien
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Grant

    Wrench with jaws having different tilt angles
    • Patent number 7,066,057
    • Issue date Jun 27, 2006
    • Chih-Ching Hsien
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Grant

    Hand tool with strain gauges
    • Patent number 7,062,978
    • Issue date Jun 20, 2006
    • Chih-Ching Hsien
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Grant

    Slide stop device of a hexagonal spanner
    • Patent number 7,059,222
    • Issue date Jun 13, 2006
    • Chih-Ching Hsien
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Grant

    Slide stop device of a hexagonal spanner
    • Patent number 7,044,034
    • Issue date May 16, 2006
    • Chih-Ching Hsien
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Grant

    Lamp seat of a hand tool
    • Patent number 7,044,621
    • Issue date May 16, 2006
    • Chih-Ching Hsien
    • F21 - LIGHTING
  • Information Patent Grant

    Spanner
    • Patent number D520824
    • Issue date May 16, 2006
    • Chih-Ching Hsien
    • D08 - Tools and hardware
  • Information Patent Grant

    Tool handle
    • Patent number D520846
    • Issue date May 16, 2006
    • Chih-Ching Hsien
    • D08 - Tools and hardware
  • Information Patent Grant

    Slide stop device of a hexagonal spanner
    • Patent number 7,040,202
    • Issue date May 9, 2006
    • Chih-Ching Hsien
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Grant

    Wrench handle
    • Patent number D520310
    • Issue date May 9, 2006
    • Chih-Ching Hsien
    • D08 - Tools and hardware
  • Information Patent Grant

    Torque wrench handle
    • Patent number D520309
    • Issue date May 9, 2006
    • Chih-Ching Hsien
    • D08 - Tools and hardware
  • Information Patent Grant

    Wrench handle
    • Patent number D519341
    • Issue date Apr 25, 2006
    • Chih-Ching Hsien
    • D08 - Tools and hardware
  • Information Patent Grant

    Two close ended spanner
    • Patent number D518342
    • Issue date Apr 4, 2006
    • Chih-Ching Hsien
    • D08 - Tools and hardware
  • Information Patent Grant

    Handle of a hand tool
    • Patent number 7,017,455
    • Issue date Mar 28, 2006
    • Chih-Ching Hsien
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Grant

    Two open ended spanner
    • Patent number D517879
    • Issue date Mar 28, 2006
    • Chih-Ching Hsien
    • D08 - Tools and hardware
  • Information Patent Grant

    Wrench with display device
    • Patent number 7,013,763
    • Issue date Mar 21, 2006
    • Chih-Ching Hsien
    • G01 - MEASURING TESTING
  • Information Patent Grant

    Wrench handle
    • Patent number D516395
    • Issue date Mar 7, 2006
    • Chih-Ching Hsien
    • D08 - Tools and hardware
  • Information Patent Grant

    Wrench handle
    • Patent number D516396
    • Issue date Mar 7, 2006
    • Chih-Ching Hsien
    • D08 - Tools and hardware
  • Information Patent Grant

    Socket
    • Patent number 7,000,505
    • Issue date Feb 21, 2006
    • Chih-Ching Hsien
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Grant

    Ratchet wheel mounting structure for wrench
    • Patent number 6,981,433
    • Issue date Jan 3, 2006
    • Chih-Ching Hsien
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Grant

    Ratchet wrench having a sealing structure
    • Patent number 6,981,435
    • Issue date Jan 3, 2006
    • Chih-Ching Hsien
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS

Patents Applicationslast 30 patents

  • Information Patent Application

    QUICK RELEASE DEVICE FOR RELEASING SCREW BIT FROM SOCKET
    • Publication number 20090165606
    • Publication date Jul 2, 2009
    • Chih-Ching Hsien
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Application

    Power-saving scissors
    • Publication number 20060277764
    • Publication date Dec 14, 2006
    • Chih-Ching Hsien
    • B26 - HAND CUTTING TOOLS CUTTING SEVERING
  • Information Patent Application

    Spanner with teeth section at clamp portion
    • Publication number 20060272456
    • Publication date Dec 7, 2006
    • Chih-Ching Hsien
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Application

    Pliers having pivotal handles
    • Publication number 20060230886
    • Publication date Oct 19, 2006
    • Chih-Ching Hsien
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Application

    Pipe wrench having a fixed positioning ring
    • Publication number 20060219061
    • Publication date Oct 5, 2006
    • Chih-Ching Hsien
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Application

    Quick release device for releasing screw bit from socket
    • Publication number 20060123957
    • Publication date Jun 15, 2006
    • Chih-Ching Hsien
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Application

    Quick release device for releasing screw bit from socket
    • Publication number 20060107801
    • Publication date May 25, 2006
    • Chih-Ching Hsien
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Application

    Quick release device for releasing screw bit from socket
    • Publication number 20060107802
    • Publication date May 25, 2006
    • Chih-Ching Hsien
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Application

    Wrench with two jaws sharing a common inclined plane
    • Publication number 20060027051
    • Publication date Feb 9, 2006
    • Chih-Ching Hsien
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Application

    Pliers having pivotal handles
    • Publication number 20060027056
    • Publication date Feb 9, 2006
    • Chih-Ching Hsien
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Application

    Extendable handle device
    • Publication number 20060027059
    • Publication date Feb 9, 2006
    • Chih-Ching Hsien
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Application

    Ratchet control structure of bidirectional ratchet spanner
    • Publication number 20060027050
    • Publication date Feb 9, 2006
    • Chih-Ching Hsien
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Application

    Quick release device for releasing screw bit from socket
    • Publication number 20060027057
    • Publication date Feb 9, 2006
    • Chih-Ching Hsien
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Application

    Extendable handles for hand tools
    • Publication number 20060027053
    • Publication date Feb 9, 2006
    • Chih-Ching Hsien
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Application

    Electronic torque wrench
    • Publication number 20060027058
    • Publication date Feb 9, 2006
    • Chih-Ching Hsien
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Application

    Dual function wrench
    • Publication number 20060021478
    • Publication date Feb 2, 2006
    • Chih-Ching Hsien
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Application

    Jaw portion structure of adjustable spanner
    • Publication number 20060021476
    • Publication date Feb 2, 2006
    • Chih-Ching Hsien
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Application

    Wrench having greater torque
    • Publication number 20060016295
    • Publication date Jan 26, 2006
    • Chih-Ching Hsien
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Application

    Slide stop device of a hexagonal spanner
    • Publication number 20050274238
    • Publication date Dec 15, 2005
    • Chih-Ching Hsien
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Application

    Slide stop device of a hexagonal spanner
    • Publication number 20050274239
    • Publication date Dec 15, 2005
    • Chih-Ching Hsien
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Application

    Slide stop device of a hexagonal spanner
    • Publication number 20050268756
    • Publication date Dec 8, 2005
    • Chih-Ching Hsien
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Application

    Slide stop device of a hexagonal spanner
    • Publication number 20050268755
    • Publication date Dec 8, 2005
    • Chih-Ching Hsien
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Application

    Reinforcement teeth for ratchet tools
    • Publication number 20050262970
    • Publication date Dec 1, 2005
    • Chih-Ching Hsien
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Application

    Unidirectional buckling assembly of spanner
    • Publication number 20050257648
    • Publication date Nov 24, 2005
    • Chih-Ching Hsien
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Application

    Lamp seat of a hand tool
    • Publication number 20050259429
    • Publication date Nov 24, 2005
    • Chih-Ching Hsien
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Application

    Orientation adjustable spanner
    • Publication number 20050241444
    • Publication date Nov 3, 2005
    • Chih-Ching Hsien
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Application

    Method for manufacturing a twisted handle and device for twisting t...
    • Publication number 20050217103
    • Publication date Oct 6, 2005
    • Chih-Ching Hsien
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Application

    BOX END WRENCH
    • Publication number 20050199104
    • Publication date Sep 15, 2005
    • Chih-Ching Hsien
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Application

    Dual function wrench
    • Publication number 20050199109
    • Publication date Sep 15, 2005
    • Chih-Ching Hsien
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Application

    Handle of a hand tool
    • Publication number 20050199107
    • Publication date Sep 15, 2005
    • Chih-Ching Hsien
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS