The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 04, 2020
Filed:
Jun. 21, 2017
Applicant:
L'oreal, Paris, FR;
Inventors:
Stéphane Sabelle, Aulnay-sous-Bois, FR;
Stéphane Blais, Aulnay-sous-Bois, FR;
Aziz Fadli, Aulnay-sous-Bois, FR;
Assignee:
L'OREAL, Paris, FR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61Q 5/10 (2006.01); C09B 55/00 (2006.01); A61K 8/49 (2006.01); C07D 471/04 (2006.01); C07D 519/00 (2006.01); C09B 53/02 (2006.01);
U.S. Cl.
CPC ...
C09B 55/003 (2013.01); A61K 8/494 (2013.01); A61K 8/4946 (2013.01); A61Q 5/10 (2013.01); C07D 471/04 (2013.01); C07D 519/00 (2013.01); C09B 53/02 (2013.01); A61K 2800/432 (2013.01); A61K 2800/87 (2013.01);
Abstract
The subject of the present invention is symmetric or dissymetric azomethine direct dyes comprising at least one pyrazolopyridine unit of formula (I), a composition comprising said dyes, a process for treating keratin fibers using said dyes, a process for preparing these compounds, synthesis intermediates and a kit. In which formula (I) X, Y, Y, Z, and Rto Rare as defined in the description.