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Arrangements for feeding the ink to the writing-points
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B43K8/18
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PERFORMING OPERATIONS TRANSPORTING
B43
Writing accessories
B43K
IMPLEMENTS FOR WRITING OR DRAWING
B43K8/00
Pens with writing-points other than nibs or balls
Current Industry
B43K8/18
Arrangements for feeding the ink to the writing-points
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Patents Grants
last 30 patents
Information
Patent Grant
Writing instrument having an elongated tip with a curvature system
Patent number
10,744,813
Issue date
Aug 18, 2020
Clarence Parker
B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
Information
Patent Grant
Liquid applying tool
Patent number
9,862,225
Issue date
Jan 9, 2018
Kotobuki & Co., Ltd.
Hidehei Kageyama
B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
Information
Patent Grant
Pen with pressurizing mechanism to pressurize ink refill
Patent number
8,801,313
Issue date
Aug 12, 2014
Micro Co., Ltd.
Hosoya Tomohiro
B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
Information
Patent Grant
Free ink system
Patent number
7,101,104
Issue date
Sep 5, 2006
Sanford, L.P.
Wolfgang Witz
B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
Information
Patent Grant
Free ink system
Patent number
6,695,517
Issue date
Feb 24, 2004
Sanford, L.P.
Wolfgang Witz
B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
Information
Patent Grant
Collector type writing instrument
Patent number
6,588,963
Issue date
Jul 8, 2003
Mitsubishi Pencil Kabushiki Kaisha
Kazuhiko Furukawa
B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
Information
Patent Grant
Writing instrument having a capillary hole through the container
Patent number
6,457,892
Issue date
Oct 1, 2002
Avery Dennison Corporation
Reza Mehrabi
B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
Information
Patent Grant
Writing implement ink conducting core
Patent number
5,829,904
Issue date
Nov 3, 1998
Mitsubishi Pencil Kabushiki Kaisha
Kazuaki Matsumoto
B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
Information
Patent Grant
Flow control for writing or drawing instrument
Patent number
5,443,322
Issue date
Aug 22, 1995
rotring international GmbH & Co. KG
Walter Jozat
B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
Information
Patent Grant
Ink writing implement
Patent number
5,427,463
Issue date
Jun 27, 1995
rotring international GmbH & Co. KG
Bernd Bastiansen
B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
Information
Patent Grant
Unitary body plotter pen
Patent number
5,420,615
Issue date
May 30, 1995
Koh-I-Noor Inc.
Wolfgang Witz
B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
Information
Patent Grant
Writing instrument with plural feeds
Patent number
5,383,736
Issue date
Jan 24, 1995
Pavel D. Okulov
B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
Information
Patent Grant
Device for applying writing, drawing, printing and painting fluids...
Patent number
5,352,052
Issue date
Oct 4, 1994
Dataprint Datendrucksysteme R. Kaufmann KG
Rainer Kaufmann
B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
Information
Patent Grant
Plotter pen with indicator circuit
Patent number
5,336,007
Issue date
Aug 9, 1994
Koh-I-Noor Inc.
Walter Jozat
B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
Information
Patent Grant
Plotter pen with coaxial reservoir
Patent number
5,172,995
Issue date
Dec 22, 1992
Koh-I-Noor Inc.
Peter Felgentreu
B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
Information
Patent Grant
Stylo pen tip
Patent number
5,052,841
Issue date
Oct 1, 1991
Koh-I-Noor Inc.
Walter Jozat
B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
Information
Patent Grant
Writing instrument with displaceable safety separator
Patent number
4,990,012
Issue date
Feb 5, 1991
J. S. Staedtler GmbH & Co.
Gerald Groetsch
B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
Information
Patent Grant
Writing point or tracing element
Patent number
4,938,620
Issue date
Jul 3, 1990
J. S. Staedtler GmbH & Co.
Peter Weiss
B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
Information
Patent Grant
Tubular writting pen with superposed pressure equalization chambers
Patent number
4,930,921
Issue date
Jun 5, 1990
Koh-I-Noor Rapidograph, Inc.
Gerold Anderka
B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
Information
Patent Grant
Pressure balanced stylographic pen
Patent number
4,753,546
Issue date
Jun 28, 1988
Koh-I-Noor Rapidograph, Inc.
Wolfgang Witz
B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
Information
Patent Grant
Ink duct for tubular styluses
Patent number
4,728,214
Issue date
Mar 1, 1988
Otto Mutschler
B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
Information
Patent Grant
Tubular writing pen tip with adjustment means
Patent number
4,662,769
Issue date
May 5, 1987
Kob-I-Noor Rapidograph, Inc.
Djing-San Goh
B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
Information
Patent Grant
Resilient writing nib with offset flattened portion
Patent number
4,626,120
Issue date
Dec 2, 1986
Pentel Kabushiki Kaisha
Hishao Fukui
B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
Information
Patent Grant
Writing instrument having plural nibs with one being retractable
Patent number
4,580,918
Issue date
Apr 8, 1986
The Gillette Company
Hugh William B. Baker
B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
Information
Patent Grant
Writing instrument with separable compensating means
Patent number
4,549,828
Issue date
Oct 29, 1985
Rotring-Werke Riepe KG
Gerold Anderka
B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
Information
Patent Grant
Writing instrument having a needle slidably mounted in a tubular tip
Patent number
4,522,525
Issue date
Jun 11, 1985
Pentel Kabushiki Kaisha
Sigeru Saito
B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
Information
Patent Grant
Ink writing implement
Patent number
4,461,591
Issue date
Jul 24, 1984
Otto Mutschler
B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
Information
Patent Grant
India ink drawing implement
Patent number
4,390,299
Issue date
Jun 28, 1983
Otto Mutschler
B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
Information
Patent Grant
Pen with an improved ink injection system
Patent number
4,318,626
Issue date
Mar 9, 1982
Edward Bok
B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
Information
Patent Grant
Tubular drafting pen with improved writing point assembly
Patent number
4,224,000
Issue date
Sep 23, 1980
J. S. Staedtler
Bernhard Endres
B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
Patents Applications
last 30 patents
Information
Patent Application
PEN WITH PRESSURIZING MECHANISM TO PRESSURIZE INK REFILL
Publication number
20130058703
Publication date
Mar 7, 2013
Hosoya TOMOHIRO
B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
Information
Patent Application
Free ink system
Publication number
20040170465
Publication date
Sep 2, 2004
Wolfgang Witz
B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
Information
Patent Application
Collector type writing instrument
Publication number
20030072600
Publication date
Apr 17, 2003
Kazuhiko Furukawa
B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
Information
Patent Application
Free ink system
Publication number
20020168215
Publication date
Nov 14, 2002
Sanford North America
Wolfgang Witz
B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES