US Patent 7578855 Composition for dyeing keratin fibers comprising at least one cationic 3-amino-pyrazolopyridine derivative, and methods of use thereof

Patent 7578855 was granted and assigned to L'Oréal on August, 2009 by the United States Patent and Trademark Office.

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Patent

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Current Assignee

L'Oréal

Patent Jurisdiction

United States Patent and Trademark Office

Patent Number

75788550

Patent Inventor Names

Aziz Fadli0

Date of Patent

August 25, 2009

Patent Application Number

115949570

Date Filed

November 9, 2006

Patent Primary Examiner

‌

Eisa B Elhilo

Patent abstract

The present disclosure relates to a composition for the dyeing of keratin fibers, such as the hair, comprising at least oneoxidation base chosen from cationic 3-amino pyrazolo-[1,5-a]-pyridine derivatives and addition salts thereof, and a method employing this composition. The present disclosure also relates to cationic 3-amino pyrazolo-[1,5-a]-pyridine derivatives and the addition salts thereof.

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