How to do the patent application priority authority table?

Method for determining the filing date of patent priority: if an invention or utility model files a patent application on the same subject in China within 12 months from the date when it first filed a patent application abroad, that date shall be taken as the filing date of patent priority; Or design in China for the first time within six months from the date of filing a patent application, and on the same subject to the administrative department for patent in the State Council, the date for the patent application.

legal ground

Article 29 of the Patent Law of People's Republic of China (PRC)

An applicant who applies for a patent for invention or utility model for the first time in a foreign country within 12 months, or for a patent for design for the first time in a foreign country within 6 months, and applies for a patent on the same subject in China, may enjoy the priority according to the agreement signed by the foreign country and China or the international treaties to which they are both parties, or according to the principle of mutual recognition of priority.

Applicants who file a patent application for invention or utility model for the first time in China within 12 months, or apply for a patent for design for the first time in China within 6 months may enjoy priority.