Patent No. EP2166078 (titled "Laundry Particle Made By Extrusion Comprising A Hueing Dye") was filed by The Procter & Gamble on Sep 12, 2008. The application was issued on Nov 21, 2018.

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 |
|---|---|---|
| UNILEVER | Aug 16, 2019 | BROOIJMANS |
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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