Powder Composition Comprising Hair Direct Dyes

Patent No. EP3684329 (titled "Powder Composition Comprising Hair Direct Dyes") was filed by KAO on Sep 20, 2018. The application was issued on Jun 24, 2026.

Patent Summary

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Patent Family

Patent Oppositions (2)

Patent oppositions filed by competitors challenge the validity of a granted patent. These oppositions are typically based on claims of prior art, lack of novelty, or non-obviousness. They are a key part of the process for determining a patent's strength and enforceability.

CompanyOpposition DateRepresentative
LOREALJul 19, 2022LOREAL
L'OREALJul 19, 2022LOREAL

Dossier Documents

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EP3684329

KAO
Application Number
EP18772805A
Filing Date
Sep 20, 2018
Status
Patent Maintained As Amended
May 22, 2026
Publication Date
Jun 24, 2026