According to MPEP 2304.01(c), an applicant must provide a certified translation of a foreign benefit application when: The foreign benefit application or PCT application is not filed in English The examiner requires the applicant to file a certified translation The applicant wants to be accorded the benefit of the non-English language application The MPEP states: "If no certified translation is in the official record for the application, the examiner must require the applicant to file a certified translation. The applicant should provide the required translation if applicant wants the application to be accorded benefit of the non-English language application." To learn more: certified translation foreign benefit application patent examination non-English application