What is preliminary patent examination?

Patent preliminary examination refers to examining whether the patent application meets the formal requirements and obvious substantive defects stipulated in the Patent Law and its detailed rules for implementation. Also known as formal review and format review. What is the preliminary examination of patent? Patent preliminary examination, also known as formal examination or format examination, is a review conducted by the patent administrative department of the State Council on whether the application for a patent for invention, utility model and design meets the formal conditions. The main purpose of the preliminary examination is to find out whether the invention applying for a patent meets the requirements of the patent law on form, so as to prepare for the future public and substantive examination; Find out whether the utility model and design applying for patent conform to the provisions of the patent law on granting patent right, and grant patent right to the utility model and design that meet the authorization conditions according to law. According to the provisions of the Patent Law, the contents of the preliminary examination of the invention patent include: 1, whether the applicant's application documents are complete, and whether the writing conforms to the provisions of the Patent Law and its implementing rules; 2. The applicant's identity is legal and all kinds of certificates are complete. If the applicant is a foreigner, whether to entrust an agent according to law; 3. Whether the invention-creation for which the patent is applied violates national laws, social morality or harms public interests, and whether it belongs to the object for which the patent right is not granted; 4. Whether the applicant has paid the application fee, etc.