"Taiwan-Japan patent priority documents electronic exchange" plan (Priority Document Exchange, referred to as “PDX”) will be officially implemented on December 2 this year.  Association of East Asian Relations and Japan's Interchange Association signed the cooperation memorandum of understanding for the priority document electronic exchange between Taiwan and Japan on November 5, 2013, with which TIPO and the Japan Patent Office could exchange patent priority documents with each other electronically rather than in papers.  After the signature, TIPO published the "Taiwan-Japan electronic exchange of priority documents Operating Guidelines", effectuated it officially starting December 2, 2013.

After the formal implementation of the plan, an applicant could apply to the TIPO for issuance of the patent application access code when the applicant first applies for an invention or utility model patent in Taiwan, subsequently applies for the patent in Japan, and claims priority of the Taiwan application.  The applicant can use the access code, instead of the paper document, to claim the priority in Japan.  Similarly, a patent applicant, who claims the priority of a Japan application with an access code issued by the JPO within 16 months of the earliest priority date, can be deemed to have submitted ​​the priority documents.