Section 151. Cancellation. -
151.1.
A petition to cancel a registration of a mark under this Act may be filed with the Bureau of Legal Affairs by any person who believes that he is or will be damaged by the registration of a mark under this Act as follows:
Within five (5) years from the date of the registration of the mark under this Act.
At any time, if the registered mark becomes the generic name for the goods or services, or a portion thereof, for which it is registered, or has been abandoned, or its registration was obtained fraudulently or contrary to the provisions of this Act, or if the registered mark is being used by, or with the permission of, the registrant so as to misrepresent the source of the goods or services on or in connection with which the mark is used. If the registered mark becomes the generic name for less than all of the goods or services for which it is registered, a petition to cancel the registration for only those goods or services may be filed. A registered mark shall not be deemed to be the generic name of goods or services solely because such mark is also used as a name of or to identify a unique product or service. The primary significance of the registered mark to the relevant public rather than purchaser motivation shall be the test for determining whether the registered mark has become the generic name of goods or services on or in connection with which it has been used. (n)
At any time, if the registered owner of the mark without legitimate reason fails to use the mark within the Philippines, or to cause it to be used in the Philippines by virtue of a license during an uninterrupted period of three (3) years or longer.
151.2.
Notwithstanding the foregoing provisions, the court or the administrative agency vested with jurisdiction to hear and adjudicate any action to enforce the rights to a registered mark shall likewise exercise jurisdiction to determine whether the registration of said mark may be cancelled in accordance with this Act. The filing of a suit to enforce the registered mark with the proper court or agency shall exclude any other court or agency from assuming jurisdiction over a subsequently filed petition to cancel the same mark. On the other hand, the earlier filing of petition to cancel the mark with the Bureau of Legal Affairs shall not constitute a prejudicial question that must be resolved before an action to enforce the rights to same registered mark may be decided. (Sec. 17, R.A. No. 166a)