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LING-FANG CHEN

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  • TAINAN CITY, TW
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Patents Grantslast 30 patents

  • Information Patent Grant

    Method for manufacturing a multi-functional fastener
    • Patent number 11,577,301
    • Issue date Feb 14, 2023
    • Essence Method Refine Co., Ltd.
    • Ling-Fang Chen
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    Screw having a head with different sockets
    • Patent number 11,572,914
    • Issue date Feb 7, 2023
    • Essence Method Refine Co., Ltd.
    • Ling-Fang Chen
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Screw with cutting slots
    • Patent number 11,391,314
    • Issue date Jul 19, 2022
    • Essence Method Refine Co., Ltd.
    • Ling-Fang Chen
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Quick fastening screw
    • Patent number 11,199,214
    • Issue date Dec 14, 2021
    • Essence Method Refine Co., Ltd.
    • Ling-Fang Chen
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Recessed screw, forming punch and driving tool
    • Patent number 9,962,759
    • Issue date May 8, 2018
    • Essence Method Refine Co., Ltd.
    • Ling-Fang Chen
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...

Patents Applicationslast 30 patents

  • Information Patent Application

    METHOD FOR MANUFACTURING A MULTI-FUNCTIONAL FASTENER
    • Publication number 20220126356
    • Publication date Apr 28, 2022
    • ESSENCE METHOD REFINE CO., LTD.
    • LING-FANG CHEN
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Application

    SCREW HAVING A HEAD WITH DIFFERENT SOCKETS
    • Publication number 20210270304
    • Publication date Sep 2, 2021
    • ESSENCE METHOD REFINE CO., LTD.
    • LING-FANG CHEN
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    SCREW WITH CUTTING SLOTS
    • Publication number 20210190119
    • Publication date Jun 24, 2021
    • ESSENCE METHOD REFINE CO., LTD.
    • LING-FANG CHEN
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    QUICK FASTENING SCREW
    • Publication number 20210088068
    • Publication date Mar 25, 2021
    • ESSENCE METHOD REFINE CO., LTD.
    • LING-FANG CHEN
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    FASTENER
    • Publication number 20170254352
    • Publication date Sep 7, 2017
    • ESSENCE METHOD REFINE CO., LTD.
    • LING-FANG CHEN
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    RECESSED FASTENER, FORMING PUNCH AND DRIVING TOOL
    • Publication number 20170095909
    • Publication date Apr 6, 2017
    • ESSENCE METHOD REFINE CO., LTD.
    • LING-FANG CHEN
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Application

    RECESSED SCREW, FORMING PUNCH AND DRIVING TOOL
    • Publication number 20160245325
    • Publication date Aug 25, 2016
    • ESSENCE METHOD REFINE CO., LTD.
    • LING-FANG CHEN
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Application

    FASTENER
    • Publication number 20160138640
    • Publication date May 19, 2016
    • ESSENCE METHOD REFINE CO., LTD.
    • LING-FANG CHEN
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...