Patent No. EP3897470 (titled "Elastic Sheet Material, Bandage Made Thereof And Method For Producing Said Material") was filed by Ottobock on Dec 4, 2019. The application was issued on Sep 11, 2024.

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 |
|---|---|---|
| MEDI | Jun 11, 2025 | LINDNER BLAUMEIER PATENT UND RECHTSANWALTE |
| BAUERFEIND | Jun 4, 2025 | GLEISS GROSSE SCHRELL UND PARTNER |
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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