with one push-button for each writing unit

Patents Grantslast 30 patents

  • Information Patent Grant

    Multi-pen having sharp knob containing a through hole for sharp lead

    • Patent number 12,151,504
    • Issue date Nov 26, 2024
    • LIVEWORK Co., Ltd.
    • Pill Won Kim
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Retractive writing utensil

    • Patent number 11,535,050
    • Issue date Dec 27, 2022
    • Zebra Co., Ltd.
    • Masataka Mizutori
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Multifunction writing instrument

    • Patent number 11,400,749
    • Issue date Aug 2, 2022
    • Societe BIC
    • Etienne Michenaud
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Multi pen dry erase marker

    • Patent number 11,305,576
    • Issue date Apr 19, 2022
    • Roger Henry Gagnon
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    One-hand operated multi-pencil

    • Patent number 11,186,115
    • Issue date Nov 30, 2021
    • Armin Arminak
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Multifunction writing instrument

    • Patent number 11,104,179
    • Issue date Aug 31, 2021
    • Societe BIC
    • Etienne Michenaud
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Electronic pen

    • Patent number 10,761,620
    • Issue date Sep 1, 2020
    • Wacom Co., Ltd.
    • Takenori Kaneda
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Electronic pen and electronic pen main body unit

    • Patent number 10,739,872
    • Issue date Aug 11, 2020
    • Wacom Co., Ltd.
    • Ryoji Kamiyama
    • G06 - COMPUTING CALCULATING COUNTING
  • Information Patent Grant

    Ballpoint pen

    • Patent number 10,576,774
    • Issue date Mar 3, 2020
    • Mitsubishi Pencil Company, Limited
    • Takeo Fukumoto
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Writing tool refill and writing tool using same

    • Patent number 10,569,596
    • Issue date Feb 25, 2020
    • Mitsubishi Pencil Company, Limited
    • Takayuki Ikai
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Multiple color marker

    • Patent number 10,493,790
    • Issue date Dec 3, 2019
    • MOCKIT SCIENCE, LLC
    • Robert Thomas Brent Cunningham
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Writing and underline-drawing implement

    • Patent number 9,844,972
    • Issue date Dec 19, 2017
    • Yong Gwang Park
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Attachment structure for clip

    • Patent number 9,784,294
    • Issue date Oct 10, 2017
    • Pentel Kabushiki Kaisha
    • Hideo Uchida
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Multi pencil

    • Patent number 9,738,113
    • Issue date Aug 22, 2017
    • Tokiwa Corporation
    • Yoshikazu Tani
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Pen with double pen barrel

    • Patent number 7,854,559
    • Issue date Dec 21, 2010
    • Spark Gold Co.
    • Yu-Yin Liu
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Composite writing instrument

    • Patent number 7,128,491
    • Issue date Oct 31, 2006
    • Mitsubishi Pencil Co., Ltd.
    • Seiichi Kobayashi
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Writing instrument

    • Patent number 6,899,482
    • Issue date May 31, 2005
    • Tombow Pencil Co., Ltd.
    • Kazunori Katami
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Writing instrument with retractable ink cartridge and retractable c...

    • Patent number 6,554,516
    • Issue date Apr 29, 2003
    • Fania Christopher
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Push-out-type writing implement

    • Patent number 6,540,422
    • Issue date Apr 1, 2003
    • GSP Institute Co., Ltd.
    • Osamu Torii
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Multiple-shaft pen kit

    • Patent number 5,927,881
    • Issue date Jul 27, 1999
    • Chin-Chen Yang
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Multiplex writing implement

    • Patent number 5,899,618
    • Issue date May 4, 1999
    • Mitsubishi Pencil Kabushiki Kaisha
    • Seiichi Kobayashi
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Combined writing tool

    • Patent number 4,968,167
    • Issue date Nov 6, 1990
    • Shuhei Kageyama
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    3604816

    • Patent number 3,604,816
    • Issue date Sep 14, 1971
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    3301221

    • Patent number 3,301,221
    • Issue date Jan 31, 1967
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    3294068

    • Patent number 3,294,068
    • Issue date Dec 27, 1966
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    3274976

    • Patent number 3,274,976
    • Issue date Sep 27, 1966
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    3262427

    • Patent number 3,262,427
    • Issue date Jul 26, 1966
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    3260241

    • Patent number 3,260,241
    • Issue date Jul 12, 1966
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    3237605

    • Patent number 3,237,605
    • Issue date Mar 1, 1966
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    3233593

    • Patent number 3,233,593
    • Issue date Feb 8, 1966
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES

Patents Applicationslast 30 patents

  • Information Patent Application

    WRITING INSTRUMENT WITH PEN AND PENCIL

    • Publication number 20220134797
    • Publication date May 5, 2022
    • SURESH KONTI
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Application

    MULTIFUNCTION WRITING INSTRUMENT

    • Publication number 20210354498
    • Publication date Nov 18, 2021
    • SOCIETE BIC
    • Etienne Michenaud
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Application

    Multi Pen Dry Erase Marker

    • Publication number 20210094339
    • Publication date Apr 1, 2021
    • Roger Henry Gagnon
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Application

    One-Hand Operated Multi-Pencil

    • Publication number 20200247174
    • Publication date Aug 6, 2020
    • Armin Arminak
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Application

    WRITING TOOL REFILL AND WRITING TOOL USING SAME

    • Publication number 20180236807
    • Publication date Aug 23, 2018
    • MITSUBISHI PENCIL COMPANY, LIMITED
    • Takayuki Ikai
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Application

    MULTI PENCIL

    • Publication number 20150343832
    • Publication date Dec 3, 2015
    • Tokiwa Corporation
    • Yoshikazu Tani
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Application

    PEN WITH DOUBLE PEN BARREL

    • Publication number 20100166487
    • Publication date Jul 1, 2010
    • Yu-Yin Liu
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Application

    Clip for a Writing Implement

    • Publication number 20090165261
    • Publication date Jul 2, 2009
    • Mitsubishi Pencil Co., Ltd.
    • Kazuhiko Furukawa
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Application

    Composite writing instrument

    • Publication number 20050063767
    • Publication date Mar 24, 2005
    • Mitsubishi Pencil Co., Ltd.
    • Seiichi Kobayashi
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Application

    Writing instrument

    • Publication number 20030215279
    • Publication date Nov 20, 2003
    • TOMBOW PENCIL CO., LTD
    • Kazunori Katami
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Application

    Push-out -type writing implement

    • Publication number 20020176731
    • Publication date Nov 28, 2002
    • Osamu Torii
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES