Anyone requesting invalidation or part invalidation of a patent right in accordance with the provisions of Article 45 of the Patent Law shall submit a request and the necessary evidence in two copies.

• 依照专利法第四十五条的规定，请求宣告专利权无效或者部分无效的，应当向专利复审委员会提交专利权无效宣告请求书和必要的证据一式两份。