一、前言根据专利法的规定,一项发明创造自提出申请、取得申请日和申请号直至获得批准授予专利权,申请案处于不同的法律状态,申请人和专利权人享有不同的权利。因此,申请人和专利权人只有在了解申请案所处的法律状态、明确依法享有那些权利以及如何行使这些权利之后,才能在申请专利后得到充分的法律保护,避免不必要的损失。 I. INTRODUCTION According to the provisions of the Patent Law, an invention-creation has different rights in the application of the application, the date of application and the application number until the approval of the grant of the patent right. The application is in a different legal status. The applicant and the patentee have different rights. Therefore, only after the applicant and the patentee understand the legal status of the application, expressly enjoy those rights in accordance with the law, and how to exercise these rights, can the applicant get sufficient legal protection after applying for a patent and avoid unnecessary losses.