In proceedings for a declaration of invalidity based on a registered trade mark with an earlier filing date or priority date, if the proprietor of the later trade mark so requests, the proprietor of the earlier trade mark shall furnish proof that, during the five-year period preceding the date of the application for a declaration of invalidity, the earlier trade mark has been put to genuine use, as provided for in Article 16, in connection with the goods or services in respect of which it is registered and which are cited as justification for the application, or that there are proper reasons for non-use, provided that the registration process of the earlier trade mark has at the date of the application for a declaration of invalidity been completed for not less than five years.

Where, at the filing date or date of priority of the later trade mark, the five-year period within which the earlier trade mark was to have been put to genuine use, as provided for in Article 16, had expired, the proprietor of the earlier trade mark shall, in addition to the proof required under paragraph 1 of this Article, furnish proof that the trade mark was put to genuine use during the five-year period preceding the filing date or date of priority, or that proper reasons for non-use existed.

In the absence of the proof referred to in paragraphs 1 and 2, an application for a declaration of invalidity on the basis of an earlier trade mark shall be rejected.

If the earlier trade mark has been used in accordance with Article 16 in relation to only part of the goods or services for which it is registered, it shall, for the purpose of the examination of the application for a declaration of invalidity, be deemed to be registered in respect of that part of the goods or services only.

Paragraphs 1 to 4 of this Article shall also apply where the earlier trade mark is an EU trade mark. In such a case, genuine use of the EU trade mark shall be determined in accordance with Article 15 of Regulation (EC) No 207/2009.