Can I apply for a patent defense to postpone the decision?

Legal analysis: if the patent defense is rejected, you cannot apply for an extension. If you are not satisfied, you should submit a request for review to the review Committee. The rejection of an application for a patent for invention refers to the decision made by China National Intellectual Property Administration not to grant a patent right after the applicant replies that the application for a patent for invention still has substantial defects as stipulated in the Patent Law.

Legal basis: Article 35 of the Patent Law of People's Republic of China (PRC) * * * Within three years from the date of filing, the patent administration department of the State Council may, upon the request of the applicant at any time, conduct substantive examination of the application; If the applicant fails to request substantive examination within the time limit without justifiable reasons, the application shall be deemed to have been withdrawn. The patent administrative department of the State Council may, when it deems it necessary, examine the application for a patent for invention on its own.