legal ground
Article 32 of the Patent Law of People's Republic of China (PRC), the applicant may withdraw his patent application at any time before being granted the patent right. Detailed Rules for the Implementation of the Patent Law of People's Republic of China (PRC) Article 36 Where an applicant withdraws his patent application, he shall make a declaration to the patent administration department of the State Council, indicating the name of the invention-creation, the application number and the date of application. The declaration of withdrawing the patent application was made after the patent administrative department of the State Council made preparations for publishing the patent application documents, which should still be published; However, the statement of withdrawing the patent application shall be announced in the patent bulletin published later.