Legal analysis: PCT is the English abbreviation of Patent Cooperation Treaty, which is an international treaty on patents. According to the provisions of PCT, patent applicants can submit international patent applications through PCT and apply for patents in many countries. A PCT patent application has to go through the international stage and the national stage. International applications must first be examined at the international stage and then at the national stage. The filing of the application, international search and international preliminary examination are completed in the international stage, and whether to grant the patent right is completed in the national stage by the designated national bureau.
Legal basis: Statistical Bulletin of National Economic and Social Development of People's Republic of China (PRC) 20 19 [68]PCT patent application acceptance refers to the number of PCT patent applications accepted by China National Intellectual Property Administration as PCT patent application acceptance bureau. PCT (Patent Cooperation Treaty) is an international cooperation treaty in the patent field.