2.3 Language for the purpose of the international preliminary examination

For the purpose of the international preliminary examination by the EPO as International Preliminary Examining Authority, the international application must be in one of its three official languages, i.e. English, French or German. If neither the language in which the international application was filed nor the language in which the application was published is one of the official languages of the EPO, the applicant must file a translation into one of these languages with the EPO as International Preliminary Examining Authority within the time limit for filing the demand.