The patent EP1681174 was granted to Chemipro Kasei Kaisha on Jul 19, 2006. The application was originally filed on Oct 21, 2004 under application number EP04791722A. The patent is currently recorded with a legal status of "The Application Is Deemed To Be Withdrawn".

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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