The patent EP3480578 was granted to Sumco on May 8, 2019. The application was originally filed on Mar 6, 2017 under application number EP17819553A. The patent is currently recorded with a legal status of "Intended To Grant".

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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