Enforcement Rules of the Patent Act Article 9
Where the applicant designates an agent, the document specifying the extent of power conferred upon the agent and the address to receive service shall be submitted to the Specific Patent Agency.Where agents for patent application and other proceedings are designated, the number of agents shall not exceed three (3).Where two or more agents are designated, each of them may act on behalf of the applicant severally.In the event that the designation violates the provision of the preceding paragraph, the agent still may act on behalf of the applicant severally.Where the power or agent is changed, unless a written notice is submitted to the Specific Patent Agency, such change has no effect to the Specific Patent Agency.Any change to the agent’s address shall be reported to the Specific Patent Agency.
中文原文 專利法施行細則第9條
申請人委任代理人者，應檢附委任書，載明代理之權限及送達處所。
有關專利之申請及其他程序委任代理人辦理者，其代理人不得逾三人。
代理人有二人以上者，均得單獨代理申請人。
違反前項規定而為委任者，其代理人仍得單獨代理。
申請人變更代理人之權限或更換代理人時，非以書面通知專利專責機關，對專利專責機關不生效力。
代理人之送達處所變更時，應向專利專責機關申請變更。
有關專利之申請及其他程序委任代理人辦理者，其代理人不得逾三人。
代理人有二人以上者，均得單獨代理申請人。
違反前項規定而為委任者，其代理人仍得單獨代理。
申請人變更代理人之權限或更換代理人時，非以書面通知專利專責機關，對專利專責機關不生效力。
代理人之送達處所變更時，應向專利專責機關申請變更。