(1) A person who has a right or an interest in a patent may intervene in hearings held with respect to a petition for patent revocation until a decision on such petition is rendered, in order to assist the patentee.
(2) Articles 155 (4) and (5) and 156 shall apply mutatis mutandis to the intervention under paragraph (1).[This Article Newly Inserted on Feb. 29, 2016]