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According to the Taiwan Patent Office (TIPO), an amendment to the new Patent Act has become effective from 11 June 2013 onwards:
Previously, in the case of dual filing of a patent and a utility model application by the same applicant for the same creation on the same day, the utility model patent was deemed non-existent ab initio in cases where the applicant selected the granted patent. After the amendment, if the applicant selects the granted patent, the utility model right shall lapse from the date when the patent was published (Article 32). Further changes were made with respect to claiming and calculating damages or compensation.