Hair colorants and methods of coloring hair

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United States of America Patent

PATENT NO 4844711
SERIAL NO

07142973

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Abstract

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A hair colorant based oxidative dyes, in which colorant the alkaline pH necessary for coloring is not produced until during application by enzymatic methods, and a method of coloring hair.

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Patent Owner(s)

Patent OwnerAddress
HANS SCHWARZKOPF GMBHHAMBURG

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Hoppe, Udo Hamburg, DE 28 547
Korbacher, Klaus Hamburg-Schenefeld, DE 2 28
Schrader, Karl-Heinz Holzminden, DE 11 62

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