The patent EP2197077 was granted to NGK Spark Plug on Jan 17, 2018. The application was originally filed on Mar 22, 2004 under application number EP10002463A. The patent is currently recorded with a legal status of "No Opposition Filed Within Time Limit".

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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