The Taiwan-Japan MoU on Electronic Patent Priority Document Exchange (PDX) was signed in 2013, applicable to both invention and utility model patent applications. As the PDX program has been put to extensive use by applicants from both countries since its implementation, an additional MoU on Design Patent Priority Document Exchange was signed in 2019.  Starting from January 1, 2022, a design patent applicant will be deemed to have filed a priority document if he/she provides an access code issued by the JPO within 10 months after the earliest priority date.  Upon its implementation, by providing an alternative to mailing paperwork, the PDX program can increase application efficiency and streamline cross-country application procedures.

(Excerpted from the Announcement of TIPO)