According to Article 42 of the Patent Law, the term of the invention patent right is 20 years, and the term of the utility model patent right and the design patent right is 10 years, both of which are counted from the date of application. Paragraph 1 1 of the Detailed Rules for the Implementation of the Patent Law. Except for the circumstances stipulated in Articles 28 and 42 of the Patent Law, the date of filing mentioned in the Patent Law means the priority date if there is priority.