What is the PCT international patent application process? The PCT is the most important international treaty in the patent field after the Paris Convention for the Protection of Industrial Property. When applying for a PCT international patent, you need to understand what the PCT international patent application process is. PCT International Patent Application Process If you need professional patent services, Bajie Intellectual Property can help you! Bajie Intellectual Property's intellectual property business is developing rapidly, focusing on trademarks, patents, copyrights, domain names and other intellectual property business directions. Bajie's intellectual property patent application and patent transfer agency services are recognized by the industry. You have patent transfer and patent application transaction needs. , please consult Bajie Intellectual Property Customer Service immediately. What is the PCT international patent application process? 1. Submit an international application. Under normal circumstances, a PCT application should be filed with the national office as the PCT receiving office. When applying for a PCT patent, the applicant must designate the member states in which the application will be valid. These designated countries are called designated countries. 2. International search 1) International search is a closed process. Except for issues of singleness or obvious errors, there is no communication between the applicant and the search unit. 9 months from the priority date, or 3 months from the receipt of the search copy by the search unit, whichever expires later, the search unit will formulate a search report or in some cases announce that it will not formulate a search report. The search report or declaration will be transmitted to the International Bureau and the applicant. 2) After 18 months from the international filing date (or priority date), the International Bureau will publish the PCT international patent application and the search report made by the International Searching Authority, and send the application together with the search report to the party requesting the PCT patent application. The patent office of the designated country. 3. International publication 1) When 18 months have expired from the priority date, the International Bureau will publish the international application internationally. 2) There are two types of publications: pamphlets and bulletins. Publication forms include paper and electronic copies. 4. International preliminary examination The international preliminary examination only provides preliminary opinions on whether the invention is novel, inventive and practical, and its examination opinions do not have any binding force on each designated country. 5. After the international stage is completed in the designated country review stage, the international patent application enters the national (or regional) stage after the applicant's application is initiated. What is the PCT international patent application process?