Patent No. EP2655115 (titled "Ventilating Device For Liquid Containers, In Particular For Liquid Containers For An Aqueous Urea Solution") was filed by Kautex Textron on Nov 19, 2011. The application was issued on Oct 29, 2014.

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 |
|---|---|---|
| VERITAS | Jul 15, 2015 | PATENTSHIP PATENTANWALTSGESELLSCHAFT |
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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