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:
May. 24, 2022
Filed:
Aug. 08, 2018
Applicant:
Wella International Operations Switzerland Sàrl, Petit-Lancy, CH;
Inventors:
Bryan P. Murphy, Loveland, OH (US);
Guiru Zhang, Lebanon, OH (US);
Aaron D. Bailey, Vernon Hills, IL (US);
Megan E. Bucks, West Chester, OH (US);
Assignee:
WELLA INTERNATIONAL OPERATIONS SWITZERLAND SÀRL, Petit-Lancy, CH;
Primary Examiner:
Int. Cl.
CPC ...
C09B 55/00 (2006.01); A61K 8/41 (2006.01); A61K 8/49 (2006.01); A61Q 5/10 (2006.01);
U.S. Cl.
CPC ...
C09B 55/00 (2013.01); A61K 8/413 (2013.01); A61K 8/492 (2013.01); A61K 8/4946 (2013.01); A61Q 5/10 (2013.01); A61K 2800/4322 (2013.01); A61K 2800/884 (2013.01);
Abstract
The present invention concerns an auxochrome substituent for an oxidative dye coupler. The auxochrome substituent enables ready developer reaction with the coupler to form azomethine and leuco dyes. Manipulation of the auxochrome substituent enables a bathochromic or hypsochromic shift of the light absorbance by the azomethine dye formed with the auxochrome substituted coupler.