Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
Home › (3,5-diaminophenyl)(2,4-dihydroxyphenyl)methanone and the acid adducts thereof, method for their preparation and use of these compounds for dyeing fibers

(3,5-diaminophenyl)(2,4-dihydroxyphenyl)methanone and the acid adducts thereof, method for their preparation and use of these compounds for dyeing fibers

US Patent 7455697 · Granted Nov 25, 2008

Assignee

Inventors

View full patent text on Google Patents →

More Patents by These Inventors

Over-temperature protection circuit2023
Controlling a high-side switching element using a bootstrap capacitor2021
Open load diagnosis2020
Compositions and methods for simultaneous reshaping and direct coloring of hair2019
Circuit for controlling slew rate of a high-side switching element2019
Ammonium hydroxide-free hair dye compositions containing a buffer system2014
Dyes for keratin fibers, the dyes containing n-benzyl-p-phenylenediamine derivat2010
O-Aminophenol derivatives and colorants containing said compounds2010
Brightening direct dyes for keratin fibers and colorants containing these compou2009
Hair colorants for simultaneous dyeing and brightening of keratin fibers2009
Neutral and cationic naphthalene and colorants for keratin fibers containing the2009
Agent for coloring keratin fibers2009