Shear-thinning writing compositions, writing instruments, and methods

United States of America Patent

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Jul 29, 2003
Grant Date
Mar 6, 2003
app pub date
Jun 6, 2001
filing date
Apr 20, 2000

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Abstract

An erasable, shear-thinning writing composition includes a shear-thinning additive and graphite particles dispersed within an aqueous solvent system.

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Patent Owner(s)

Patent Owner	Address
BEROL CORPORATION	29 EAST STEPHENSON STREET FREEPORT IL 61032 UNITED STATES OF AMERICA

International Classification(s)

C09D:COATING COMPOSITIONS, e.g. PAINTS, VARNISHES, LACQ....

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Inventor(s)

Inventor Name	Address	# of filed Patents	Total Citations
Czubarow, Pawel	Wellesley, MA	37	344
Spencer, Jean L	Boston, MA	34	933

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Shear-thinning writing compositions, writing instruments, and methods

Number of patents in Portfolio can not be more than 2000

United States of America Patent

09857561

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PATENT NO	6599353
APP PUB NO	20030041776A1
SERIAL NO	09857561
DOCKET NO

US Family Size	Non-US Coverage
Patent Longevity	Forward Citations

DATE PUBLISHED	PUBLICATION/PATENT NO.	PUBLICATION TYPE
July 29, 2003	US,6599353,B2 US6599353B2	GRANTED PATENT AS SECOND PUBLICATION
March 06, 2003	US,20030041776,A1 US20030041776A1	FIRST PUBLISHED PATENT APPLICATION

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09857561

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