The patent EP4000777 was granted to Sumitomo Electric Hardmetal on Sep 3, 2025. The application was originally filed on Jul 17, 2020 under application number EP20840150A. 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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