Patent No. EP3220001 (titled "Fire-Resistant Anti-Vibration Device Intended For A Railway Application") was filed by Hutchinson on Mar 17, 2017. The application was issued on Feb 20, 2019.

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 |
|---|---|---|
| CONTITECH LUFTFEDERSYSTEME | Nov 19, 2019 | MEISSNER BOLTE PARTNERSCHAFT MBB |
| FLECK | Nov 19, 2019 | MAUCHER JENKINS PATENT UND RECHTSANWALTE |
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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