According to the relevant provisions of the "Patent Law" and the "Patent Law Implementing Rules", the applicant shall within twelve months from the date when the invention or utility model first files a patent application in a foreign country, or from the date of the appearance of the invention or utility model. If a design files a patent application for the same subject in China within six months of the first patent application filed in a foreign country, the design shall be governed by the agreement signed by the foreign country with China or an international treaty both parties are a party to, or in accordance with mutual recognition. According to the principle of priority, you can enjoy the right of priority; if the applicant files another patent application for the same subject with the Patent Administration Department of the State Council within twelve months from the date of first filing a patent application for an invention or utility model in China, you can enjoy the right of priority. priority. If the applicant claims priority in his country, if the earlier application is an invention patent application, he can file an invention or utility model patent application on the same subject; if the earlier application is a utility model patent application, he can file a utility model or invention patent application on the same subject. However, when filing a later application, if the subject matter of the earlier application falls under any of the following circumstances, it shall not be used as the basis for claiming domestic priority: (1) foreign priority or domestic priority has been claimed; (2) a patent has been granted (3) It is a divisional application submitted in accordance with regulations. If the applicant claims domestic priority, his or her earlier application shall be deemed to have been withdrawn from the date of filing of the later application. An applicant may claim one or more priorities in a patent application; if multiple priorities are claimed, the priority period of the application shall be calculated from the earliest priority date