Aqueous liquid formulations of pyrazoline brighteners

United States of America Patent

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Nov 27, 2007
Grant Date
Nov 17, 2005
app pub date
Feb 20, 2003
filing date
Feb 28, 2002

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Expired

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Abstract

The claimed liquid formulations contain an organic acid and a branched mono- or di-alcohol. The addition of the alcohol improves the storage stability of the liquid formulations.

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Patent Owner	Address
CLARIANT PRODUKTE (DEUTSCHLAND) GMBH	65929 FRANKFURT AM MAIN

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C09B:ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PROD....

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Inventor Name	Address	# of filed Patents	Total Citations
Lerch, Alexander	Geinhausen, DE	19	62
Zirkenbach, Gerhard	Rudesheim, DE	3	5

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Aqueous liquid formulations of pyrazoline brighteners

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United States of America Patent

10506136

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PATENT NO	7300474
APP PUB NO	20050251931A1
SERIAL NO	10506136
DOCKET NO

US Family Size	Non-US Coverage
Patent Longevity Expired	Forward Citations

DATE PUBLISHED	PUBLICATION/PATENT NO.	PUBLICATION TYPE
November 27, 2007	US,7300474,B2 US7300474B2	GRANTED PATENT AS SECOND PUBLICATION
November 17, 2005	US,20050251931,A1 US20050251931A1	FIRST PUBLISHED PATENT APPLICATION

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10506136

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