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Reservoirs with ink-level inspection means
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B43K7/06
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Parent Industries
B
PERFORMING OPERATIONS TRANSPORTING
B43
Writing accessories
B43K
IMPLEMENTS FOR WRITING OR DRAWING
B43K7/00
Ball-point pens
Current Industry
B43K7/06
Reservoirs with ink-level inspection means
Industries
Overview
Organizations
People
Information
Impact
Patents Grants
last 30 patents
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
Cosmetic applicator
Patent number
10,143,288
Issue date
Dec 4, 2018
Mitsubishi Pencil Company, Limited
Satoshi Sakuma
B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
Information
Patent Grant
Writing instrument
Patent number
9,375,972
Issue date
Jun 28, 2016
Kabushiki Kaisha Pilot Corporation
Hirotaka Masuda
B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
Information
Patent Grant
Fingertip mountable writing instrument
Patent number
9,333,796
Issue date
May 10, 2016
Keith Martin
B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
Information
Patent Grant
Combination pen refill cartridge and active stylus
Patent number
9,129,180
Issue date
Sep 8, 2015
BlackBerry Limited
Mihal Lazaridis
B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
Information
Patent Grant
Writing instrument
Patent number
8,684,617
Issue date
Apr 1, 2014
Mitsubishi Pencil Kabushiki Kaisha
Takao Koyama
B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
Information
Patent Grant
Joining member and ballpoint pen employing the same
Patent number
8,439,587
Issue date
May 14, 2013
Zebra Co., Ltd.
Tomooki Okabe
B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
Information
Patent Grant
Fingertip writing instrument
Patent number
7,476,043
Issue date
Jan 13, 2009
Angel Rivas
B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
Information
Patent Grant
Water-based ink composition for ballpoint pen and ballpoint pen com...
Patent number
7,441,976
Issue date
Oct 28, 2008
The Pilot Ink Co., Ltd.
Nobuyuki Kitaoka
B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
Information
Patent Grant
Writing implement
Patent number
7,070,352
Issue date
Jul 4, 2006
Mitsubishi Pencil Kabushikikaisha
Hisashi Iida
B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
Information
Patent Grant
Ink-storing body for writing utensil
Patent number
7,063,475
Issue date
Jun 20, 2006
Mitsubishi Pencil Kabushiki Kaisha
Kazuhisa Kirita
B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
Information
Patent Grant
Transparent or translucent tubular structure
Patent number
6,742,952
Issue date
Jun 1, 2004
BIC Corporation
Qingping Chen
B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
Information
Patent Grant
Liquid ink writing pen with visible tip
Patent number
6,464,420
Issue date
Oct 15, 2002
Chartpak, Inc.
Bruce W. Brunetti
B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
Information
Patent Grant
Ecologically beneficial refill for a pen including a level indicato...
Patent number
6,068,422
Issue date
May 30, 2000
Eversharp Pen Co.
Paul A. Smith
B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
Information
Patent Grant
Device for preventing drying of ink in writing instrument
Patent number
4,911,571
Issue date
Mar 27, 1990
Sakura Color Products Corporation
Shigeyasu Inoue
B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
Information
Patent Grant
Writing instrument with ink quantity of level detecting function
Patent number
4,889,442
Issue date
Dec 26, 1989
Mitsubishi Pencil Co., Ltd.
Hiroshi Takagi
B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
Information
Patent Grant
2495013
Patent number
2,495,013
Issue date
Jan 17, 1950
B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
Patents Applications
last 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