Solvent-based pen inks

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO

6149721

SERIAL NO

09244538

Stats

ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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Solvent-based pen inks are provided. The inks include an acid dye and a solvent system that includes an oxa acid solvent, the oxa acid solvent functioning as the primary solvent for the acid dye. Preferred inks are eradicable, and include an acid dye that decolorizes if contacted with a decolorizing compound.

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First Claim

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Patent Owner(s)

Patent OwnerAddressTotal Patents
BEROL CORPORATIONFREEPORT, IL125

International Classification(s)

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  • [Patents Count]

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Hopson, Russell E Jamaica Plain, MA 3 36
Wang, Yichun Canton, MA 16 93

Cited Art Landscape

Patent Info (Count) # Cites Year
 
Other [Check patent profile for assignment information] (3)
* 5324131 Emphasizing ink removing applicator and ink removal method 22 1988
* 5427278 Highlighting-ink remover applicator 19 1994
* 5711790 Marking composition 5 1996
 
Pentel Kabushiki Kaisha (1)
* 4557618 Ink and eraser of the ink 84 1982
 
All-Mark Corporation, Inc. (1)
* 4681471 Kit comprising multicolored fluid dispenser markers together with eradicating fluid dispenser, stamps and stamp pad 38 1984
 
Milliken Research Corporation (2)
* 5043013 Washable ink compositions 57 1989
* 5059244 Fugitive colorant and washable ink compositions 38 1990
 
XEROX CORPORATION (1)
* 5700316 Acoustic ink compositions 42 1996
 
BEROL CORPORATION (2)
* 5378752 Ink eradicator system including film forming polymer 17 1992
* 5649999 Ink eradicator system 18 1996
 
PELIKAN GMBH (1)
* 5006171 Ink eradicator for inks containing triaryl methane dyestuffs 30 1989
 
CRAYOLA LLC (7)
* 5116410 Washable dye-containing composition 26 1990
* 5232494 Color changing compositions 42 1992
* 5352282 Color changing compositions 23 1993
* 5326388 Color changing compositions 35 1993
* 5486228 Washable color changing compositions 44 1994
* 5460647 Color-changing marking composition system 28 1995
* 5464470 Color-changing marking composition system 38 1995
 
SAKURA COLOR PRODUCTS CORPORATION (1)
* 4578117 Erasable ink composition 32 1984
 
BINNEY & SMITH INC. (1)
* 5478382 Color changing compositions for use on non-porous surfaces 28 1994
* Cited By Examiner

Patent Citation Ranking

Forward Cite Landscape

Patent Info (Count) # Cites Year
 
IYA TECHNOLOGY LABORATORIES, LLC (1)
* 2008/0248,950 Ink and Developer System 1 2007
 
SIGNAL PHARMACEUTICALS, INC. (1)
* 2005/0124,007 Human mesencephalon cell lines and methods of use therefor 0 2004
 
SANFORD, L.P. (20)
6905539 Black eradicable ink, methods of eradication of the same, eradicable ink kit, and eradicated ink complex 14 2003
* 2005/0011,404 ERADICABLE GEL INK, METHODS OF ERADICATION OF THE SAME, ERADICABLE INK KIT, AND ERADICATED INK COMPLEX 4 2003
7083665 Highlightable marking composition, method of highlighting the same, highlightable marking composition kit, and highlighted marking composition complex 3 2003
7229487 Writing instruments with eradicable inks and eradicating fluids 3 2004
* 2005/0150,423 Writing instruments with eradicable inks and eradicating fluids 0 2004
7442725 Color changing correction fluid 2 2004
* 2005/0075,419 Color changing correction fluid 1 2004
7163575 Water-based, resin-free and solvent-free eradicable ball-pen inks 7 2004
7427318 Highlightable and highlighted mixtures, marking instruments, and methods of using the same 0 2004
* 2005/0120,919 Highlightable and highlighted mixtures, marking instruments, and methods of using the same 4 2004
7704308 Method of highlighting with a reversible highlighting mixture, highlighting kit, and highlighted complex 0 2004
* 2005/0158,471 Method of highlighting with a reversible highlighting mixture, highlighting kit, and highlighted complex 2 2004
* 2005/0192,379 Eradicable composition and kit 4 2005
7488380 Highlighting marking compositions, highlighting kits, and highlighted complexes 5 2006
* 2007/0017,413 Highlighting marking compositions, highlighting kits, and highlighted complexes 6 2006
8110615 Correction fluids 0 2006
* 2007/0142,502 Correction fluids 3 2006
7452146 Writing instruments with eradicable inks and eradicating fluids 4 2007
* 2007/0231,494 Writing Instruments With Eradicable Inks And Eradicating Fluids 0 2007
9109126 Ink compositions comprising colorant particles containing polymeric particles 0 2013
* Cited By Examiner