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In addition to improvements announced in earlier "Updates" published on 14 March 2012 and 21 March 2012, the Taiwan Patent Office (TIPO) will now also make online file wrapper information available for utility models filed on or after 2 May 2012. (Previously, file wrapper information could only be retrieved for invention patents.) The search is possible via an English search interface on TIPO's English website (click on "File Wrapper Search").
A step-by-step search guide showing how to access a Taiwanese file wrapper is available on the EPO's "virtual helpdesk" on Asian patent information.