The patent EP3422062 was granted to Sumitomo Electric Industries on Sep 3, 2025. The application was originally filed on Feb 17, 2017 under application number EP17756394A. The patent is currently recorded with a legal status of "Granted And Under Opposition".

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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