WIPO and EPO fees subject to periodic change due to fluctuations in exchange rate. Refer to the Official Gazette of the United States Patent and Trademark Office for current amounts.

• 由于汇率的波动,世界知识产权组织和欧洲专利局费用易受周期性变化,对当前价格,可参见美国专利与商标局官方公报。