Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
Home › Compounds in the form of 5,6-dihydroxyindole polymers, their process of preparation and compositions comprising them

Compounds in the form of 5,6-dihydroxyindole polymers, their process of preparation and compositions comprising them

US Patent 5801169 · Granted Sep 1, 1998

Assignee

Inventors

View full patent text on Google Patents →

More Patents by These Inventors

Use of essential oil of oregano or of rosewood, or constituents thereof, in the 2018
Use of essential oil of oregano and of rosewood, or constituents thereof, in the2015
Depigmenting keratin materials utilizing dithiolane compounds2013
Administration of dithiolane compounds for photoprotecting the skin2013
Method of depigmenting or bleaching mammalian skin using L-2-oxothiazolidine-4-c1999
Use of N,N'-dibenzylethylenediamine-N,N'-diacetic acid derivatives as depigmenti1999
Use of N,N'-dibenzylethylenediamine-N,N'-diacetic acid derivatives as depigmenti1998
Process for the preparation of a melanic pigment of small particle size and its 1998
Compounds in the form of 5,6-dihydroxyindole polymers, their process of preparat1998