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:
Apr. 12, 2005
Filed:
Apr. 15, 2003
Applicants:
Iduna Matzik, Erkrath, DE;
Detlef Hollenberg, Erkrath, DE;
Mechthild Borgerding, Langenfeld, DE;
Inventors:
Assignee:
Henkel Kommanditgesellschaft auf Aktien, Duesseldorf, DE;
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A61K007/13 ;
U.S. Cl.
CPC ...
Abstract
The invention concerns the use of indoline derivatives of formula (I):in which R, R, R, Rand Rindependently of one another represent hydrogen or Calkyl groups, or Rand Rtogether with the oxygen atoms to which they are attached represent a Calkylenedioxy group, or of salts of such indoline derivatives, as additives to hair dyeing agents of the direct dyeing or primary intermediate/secondary intermediate type, thus producing hair dyeing with excellent color fastness characteristics.