Article 16

1.   Not later than three years from the date on which the first European patent with unitary effect takes effect, and every five years thereafter, the Commission shall present to the European Parliament and the Council a report on the operation of this Regulation and, where necessary, make appropriate proposals for amending it.

2.   The Commission shall regularly submit to the European Parliament and the Council reports on the functioning of the renewal fees referred to in Article 11, with particular emphasis on compliance with Article 12.