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Szu-Yu CHEN

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  • CHANG HUA, TW
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Patents Grantslast 30 patents

  • Information Patent Grant

    Writing tool and dispensing unit thereof
    • Patent number 10,828,928
    • Issue date Nov 10, 2020
    • SDI Corporation
    • Szu-Yu Chen
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Writing tool
    • Patent number 10,569,594
    • Issue date Feb 25, 2020
    • SDI Corporation
    • Szu-Yu Chen
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Pressure regulating device for writing tool and writing tool having...
    • Patent number 10,414,201
    • Issue date Sep 17, 2019
    • SDI Corporation
    • Szu-Yu Chen
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Reciprocating pencil sharpener
    • Patent number 9,969,207
    • Issue date May 15, 2018
    • SDI Corporation
    • Szu-Yu Chen
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Automatic cover-opening device
    • Patent number 9,694,624
    • Issue date Jul 4, 2017
    • SDI Corporation
    • Szu-Yu Chen
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Adjustable pencil sharpener
    • Patent number 9,248,691
    • Issue date Feb 2, 2016
    • SDI Corporation
    • Szu-Yu Chen
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Reciprocating pencil sharpener
    • Patent number 9,227,460
    • Issue date Jan 5, 2016
    • SDI Corporation
    • Szu-Yu Chen
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Pencil sharpener
    • Patent number D678413
    • Issue date Mar 19, 2013
    • SDI Corporation
    • Szu-Yu Chen
    • D19 - Office supplies
  • Information Patent Grant

    Pencil sharpener
    • Patent number D678414
    • Issue date Mar 19, 2013
    • SDI Corporation
    • Szu-Yu Chen
    • D19 - Office supplies
  • Information Patent Grant

    Pencil sharpener
    • Patent number D676489
    • Issue date Feb 19, 2013
    • SDI Corporation
    • Szu-Yu Chen
    • D19 - Office supplies

Patents Applicationslast 30 patents

  • Information Patent Application

    PRESSURE REGULATING DEVICE FOR WRITING TOOL AND WRITING TOOL HAVING...
    • Publication number 20190143739
    • Publication date May 16, 2019
    • SDI Corporation
    • Szu-Yu CHEN
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Application

    Writing Tool
    • Publication number 20190084340
    • Publication date Mar 21, 2019
    • SDI Corporation
    • Szu-Yu CHEN
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Application

    WRITING TOOL AND DISPENSING UNIT THEREOF
    • Publication number 20180333979
    • Publication date Nov 22, 2018
    • SDI Corporation
    • Szu-Yu CHEN
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Application

    RECIPROCATING PENCIL SHARPENER
    • Publication number 20160068009
    • Publication date Mar 10, 2016
    • SDI Corporation
    • Szu-Yu CHEN
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Application

    AUTOMATIC COVER-OPENING DEVICE
    • Publication number 20150322704
    • Publication date Nov 12, 2015
    • SDI Corporation
    • SZU-YU CHEN
    • E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
  • Information Patent Application

    ADJUSTABLE PENCIL SHARPENER
    • Publication number 20140000119
    • Publication date Jan 2, 2014
    • SDI Corporation
    • Szu-Yu CHEN
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Application

    RECIPROCATING PENCIL SHARPENER
    • Publication number 20120192995
    • Publication date Aug 2, 2012
    • SDI Corporation
    • Szu-Yu CHEN
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES