Enforcement Rules of the Patent Act Article 75

When more than one invalidation actions are to be consolidated for examination pursuant to Paragraph 1, Article 78 of the Act, the Specific Patent Agency shall notify the respective invalidation requesters and the patentee of the reasons and evidence on which the respective invalidation actions rely.The invalidation requesters and the patentee may each submit their comments or a response with respect to the reasons and evidence on which the respective invalidation actions rely within a time limit specified by the Specific Patent Agency.
中文原文 專利法施行細則第75條
專利專責機關依本法第七十八條第一項規定合併審查多件舉發案時,應將各舉發案提出之理由及證據通知各舉發人及專利權人。
各舉發人及專利權人得於專利專責機關指定之期間內就各舉發案提出之理由及證據陳述意見或答辯。

English translation for reference only; the Chinese text prevails. Not legal advice.