Patent No. EP0838214 (titled "Cosmetic Compositions Containing A Combination Of Uv-Absorbers Including A Triazine Derivative") was filed by Basf on Oct 10, 1997. The application was issued on Jun 18, 2014.
Cosmetic compositions for topical use to protect the skin and/or hair from UV radiation that achieve enhanced light stability through a combination of broad-spectrum UV absorption and thermal stability. The compositions contain a UV filter and a stabilizer, with the UV filter comprising a compound with a broad-spectrum absorption profile, and the stabilizer comprising a light-stable compound. The compositions are formulated with specific combinations of these UV filters and stabilizers, along with skin- and hair-compatible carriers and solvents, to provide superior UV protection and stability.

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 |
|---|---|---|
| V CHEMICAL | Oct 5, 2005 | MONTELATICI |
| BEIERSDORF PATENTE | Oct 5, 2005 | - |
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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