Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
Home › Symmetric azomethine direct dyes, process for their preparation, cosmetic composition comprising at least one such dye and use thereof

Symmetric azomethine direct dyes, process for their preparation, cosmetic composition comprising at least one such dye and use thereof

US Patent 11504318 · Granted Nov 22, 2022

Assignee

Inventors

View full patent text on Google Patents →

More Patents by These Inventors

Systems and methods for evaluating cyber assets2025
Process for dyeing keratin fibers using a direct dye and a saccharinate salt and2025
Efficient directed content in pub/sub systems2024
Trust policies for a data provisioning layer2023
Systems and methods for evaluating cyber assets2023
Composition for dyeing the hair, comprising a heterocyclic oxidation base and a 2023
Process for dyeing keratin materials using a direct dye and an aliphatic ammoniu2023
Oxidation base derived from 1-hexyl-4,5-diaminopyrazole, composition containing 2023
Use of dihydroisoquinolinium double derivatives for treating keratin materials, 2022
Use of dihydroisoquinolinium double derivatives for treating keratin materials, 2022
Use of dihydroisoquinolinium salts for treating keratin materials, compositions 2022
Use of dihydroisoquinolinium salts for treating keratin materials, compositions 2022