Patent No. EP2879656 (titled "Dye Composition In Cream Form Comprising At Least One Oil And Little Or No Solid Fatty Alcohol, Dyeing Process And Suitable Device") was filed by L'Oreal on Aug 2, 2013. The application was issued on Jul 17, 2024.

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.
| Company | Opposition Date | Representative |
|---|---|---|
| KAO GERMANY | Feb 28, 2020 | GRIT |
The dossier documents provide a comprehensive record of the patent's prosecution history - including filings, correspondence, and decisions made by patent offices - and are crucial for understanding the patent's legal journey and any challenges it may have faced during examination.
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