1"-invention," 2 "-utility model," 3 "-design," 8 "is the invention of PCT application," 9 "is the utility model of PCT application; PCT application is an international patent. In order to obtain a patent in a certain country, the patent applicant must also go through the formalities of entering the country, and the patent office of that country will examine the patent application. If it meets the requirements of the patent law of the country, a patent right shall be granted.