The types of utility patents for books and materials include utility model patent applications, utility model patent authorization announcements, utility model patent certificates, utility model patent annual fee notices, utility model patent search reports, and utility model patent invalidity Declaration of decision. According to the query of relevant public information: Utility patents are an important form in the field of intellectual property. They are mainly used to protect new technical solutions, product designs, production processes and other practical innovations. Compared with invention patents, utility patents The examination standards are relatively loose, and the threshold for obtaining patent protection is lower. The types of materials for utility patents mainly include applications, authorization announcements, certificates of rights, annual fee notices, search reports and invalidation decisions, etc. These materials are important for patent holders. People and relevant stakeholders have important legal significance and commercial value.