Patent No. EP3071135 (titled "High-Frequency Surgical Appliance And Method For Operating Such An Appliance") was filed by Olympus Winter & IBE on Nov 14, 2014. The application was issued on Sep 30, 2020.

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.
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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