Yellow anionic disazo dyes

United States of America Patent

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Jan 24, 2012
Grant Date
Aug 12, 2010
app pub date
Mar 29, 2010
filing date
Jun 6, 2002

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Expired

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Abstract

The present invention relates to novel yellow anionic dyes, a process for their preparation, certain novel intermediates necessary for their preparation and the use of these dyes for dyeing natural or synthetic materials, in particular, paper. The dyes are of formula (14), (15) or (16)

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Patent Owner	Address
CIBA SPECIALTY CHEMICALS CORPORATION	540 WHITE PLAINS ROAD P O BOX 2005 TARRYTOWN NY 10591

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Inventor Name	Address	# of filed Patents	Total Citations
Käser, Adolf	Bottmingen, CH	15	102
Lennartz, Michael	Lörrach, DE	25	151
Weiss, Sandra	Lörrach-Brombach, DE	5	5

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Yellow anionic disazo dyes

Number of patents in Portfolio can not be more than 2000

United States of America Patent

12748504

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PATENT NO	8101731
APP PUB NO	20100199443A1
SERIAL NO	12748504
DOCKET NO

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

DATE PUBLISHED	PUBLICATION/PATENT NO.	PUBLICATION TYPE
January 24, 2012	US,8101731,B2 US8101731B2	GRANTED PATENT AS SECOND PUBLICATION
August 12, 2010	US,20100199443,A1 US20100199443A1	FIRST PUBLISHED PATENT APPLICATION

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12748504

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