Patent No. EP2515810 (titled "Ear Protector With A Sound Damping Filter, Sound Damping Filter For Such An Ear Protector As Well As Method For Manufacturing A Sound Damping Filter For Such An Ear Protector") was filed by Dynamic EAR on Dec 7, 2010. The application was issued on Apr 26, 2017.

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 |
|---|---|---|
| BLOKLAND | Jan 26, 2018 | ALGEMEEN OCTROOI EN MERKENBUREAU |
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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