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Cheng-Tsan Hu

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  • Tainan Hsien, TW
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Patents Grantslast 30 patents

  • Information Patent Grant

    Insulated screwdriver
    • Patent number 11,207,772
    • Issue date Dec 28, 2021
    • Gong Fong Enterprise Co., Ltd.
    • Cheng-Te Hu
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Grant

    Screwdriver bit accommodating seat retaining structure of screwdriver
    • Patent number 11,148,277
    • Issue date Oct 19, 2021
    • Gong Fong Enterprise Co., Ltd.
    • Cheng-Te Hu
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Grant

    Folding tool set
    • Patent number 10,821,578
    • Issue date Nov 3, 2020
    • Gong Fong Enterprise Co., Ltd.
    • Cheng-Te Hu
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Grant

    Screwdriver and ratchet mechanism thereof
    • Patent number 10,525,571
    • Issue date Jan 7, 2020
    • Gong Fong Enterprise Co., Ltd.
    • Cheng-Tsan Hu
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Grant

    Ratchet screwdriver with an accelerating structure
    • Patent number 7,748,296
    • Issue date Jul 6, 2010
    • Gong Fong Enterprise Co., Ltd.
    • Cheng-Tsan Hu
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Grant

    Tool handle
    • Patent number D603683
    • Issue date Nov 10, 2009
    • Gong Fong Enterprise Co., Ltd.
    • Cheng-Tsan Hu
    • D08 - Tools and hardware
  • Information Patent Grant

    Screwdriver having a ratchet mechanism
    • Patent number 7,353,734
    • Issue date Apr 8, 2008
    • Cheng-tsan Hu
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Grant

    Screwdriver having a ratchet mechanism
    • Patent number 7,185,565
    • Issue date Mar 6, 2007
    • Cheng-tsan Hu
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Grant

    Screwdriver heads chamber for a precise screwdriver
    • Patent number 6,997,088
    • Issue date Feb 14, 2006
    • Cheng-Tsan Hu
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Grant

    Precision screwdriver having a turning head
    • Patent number 6,968,760
    • Issue date Nov 29, 2005
    • Cheng-tsan Hu
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Grant

    Assembling screwdriver with hexagonal socket design
    • Patent number 6,494,121
    • Issue date Dec 17, 2002
    • Gong Fong Enterprise Co., Ltd.
    • Cheng-Te Hu
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Grant

    Precision driver rotation structure
    • Patent number 6,457,385
    • Issue date Oct 1, 2002
    • Cheng-tsan Hu
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Grant

    Hand-held tool handle
    • Patent number 6,196,093
    • Issue date Mar 6, 2001
    • Cheng-Yin Hu
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Grant

    Multi-function electric tool
    • Patent number 5,033,552
    • Issue date Jul 23, 1991
    • Cheng-Te Hu
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS

Patents Applicationslast 30 patents

  • Information Patent Application

    RATCHET HAND TOOL
    • Publication number 20210370482
    • Publication date Dec 2, 2021
    • GONG FONG ENTERPRISE CO., LTD.
    • CHENG-TE HU
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Application

    SCREWDRIVER BIT ACCOMMODATING SEAT RETAINING STRUCTURE OF SCREWDRIVER
    • Publication number 20210060758
    • Publication date Mar 4, 2021
    • GONG FONG ENTERPRISE CO., LTD.
    • Cheng-Te HU
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Application

    FOLDING TOOL SET
    • Publication number 20190344409
    • Publication date Nov 14, 2019
    • GONG FONG ENTERPRISE CO., LTD.
    • Cheng-Te HU
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Application

    INSULATED SCREWDRIVER
    • Publication number 20190299391
    • Publication date Oct 3, 2019
    • Gong Fong Enterprise Co.,Ltd.
    • CHENG-TE HU
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Application

    SCREWDRIVER AND RATCHET MECHANISM THEREOF
    • Publication number 20190210199
    • Publication date Jul 11, 2019
    • GONG FONG ENTERPRISE CO., LTD.
    • CHENG-TSAN HU
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Application

    HAND TOOL DISPLAY HANGER
    • Publication number 20150209956
    • Publication date Jul 30, 2015
    • GONG FONG ENTERPRISE CO., LTD.
    • Cheng-Te HU
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Application

    SAFETY DEVICE FOR TOOL DISPLAY TAG
    • Publication number 20150114862
    • Publication date Apr 30, 2015
    • GONG FONG ENTERPRISE CO., LTD.
    • Cheng-Te HU
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Application

    RETRACTABLE SCREWDRIVER
    • Publication number 20120031239
    • Publication date Feb 9, 2012
    • GONG FONG ENTERPRISE CO., LTD.
    • Che-I HU
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Application

    RETRACTABLE SCREWDRIVER
    • Publication number 20110079116
    • Publication date Apr 7, 2011
    • CHENG-TE HU
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Application

    TOOL SLEEVE CLAMPING STRUCTURE
    • Publication number 20100294087
    • Publication date Nov 25, 2010
    • GONG FONG ENTERPRISE CO., LTD.
    • CHENG-TSAN HU
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Application

    RATCHET SCREWDRIVER WITH AN ACCELERATING STRUCTURE
    • Publication number 20100018366
    • Publication date Jan 28, 2010
    • GONG FONG ENTERPRISE CO., LTD.
    • CHENG-TSAN HU
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Application

    Screwdriver heads chamber for a precise screwdriver
    • Publication number 20050204878
    • Publication date Sep 22, 2005
    • Cheng-Tsan Hu
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Application

    Precision screwdriver having a turning head
    • Publication number 20040139832
    • Publication date Jul 22, 2004
    • Cheng-Tsan Hu
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Application

    Turning head of precision screwdriver
    • Publication number 20040025650
    • Publication date Feb 12, 2004
    • Cheng-Tsan Hu
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS