A: The Philippines requires you to submit a Declaration of Use (DAU) for domestic applications. Note that this is also required for international applications via the Madrid Protocol.
In addition, the Madrid Protocol application is a very useful system for trademark registration overseas, but it has disadvantages. Since the registration is dependent on the home country application or registration for five years after the international registration, if the home application or registration is rejected, withdrawn, abandoned or invalid, the international registration will also be revoked. This is called the central attack, in which case the applicant can change to a national application for each designated country within three months after the cancellation of the international registration. In that case, the application will be deemed to have been filed on the international registration date.