Reservoirs with ink-level inspection means

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Patents Grantslast 30 patents

Patents Applicationslast 30 patents

  • 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

    COMBINATION PEN REFILL CARTRIDGE AND ACTIVE STYLUS

    • Publication number 20140050516
    • Publication date Feb 20, 2014
    • Research in Motion Limited
    • Mihal LAZARIDIS
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Application

    REFILL SYSTEM AND METHOD

    • Publication number 20130078025
    • Publication date Mar 28, 2013
    • Carmit Turgeman
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Application

    JOINING MEMBER AND BALLPOINT PEN EMPLOYING THE SAME

    • Publication number 20100129136
    • Publication date May 27, 2010
    • ZEBRA CO., LTD.
    • Tomooki Okabe
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Application

    WRITING INSTRUMENT

    • Publication number 20100074672
    • Publication date Mar 25, 2010
    • Mitsubishi Pencil Kabushiki Kaisha
    • Takao Koyama
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Application

    Writing instrument, in particular a roller ball pen comprising an i...

    • Publication number 20070053738
    • Publication date Mar 8, 2007
    • Niels Raeder
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Application

    Water-based ink composition for ballpoint pen and ballpoint pen com...

    • Publication number 20060088363
    • Publication date Apr 27, 2006
    • THE PILOT INK CO., LTD.
    • Nobuyuki Kitaoka
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Application

    Writing utensil

    • Publication number 20050232685
    • Publication date Oct 20, 2005
    • Mitsubishi Pencil Kabushiki Kaisha
    • Takao Koyama
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Application

    Writing implement

    • Publication number 20040240925
    • Publication date Dec 2, 2004
    • Hisashi Iida
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Application

    Ink-storing body for writing utensil

    • Publication number 20040228673
    • Publication date Nov 18, 2004
    • Kazuhisa Kirita
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Application

    LIQUID INK WRITING PEN WITH VISIBLE TIP

    • Publication number 20020141808
    • Publication date Oct 3, 2002
    • Bruee W. Brunetti
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES