Term of patent right
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 counting from the date of application.
Date of application and priority date
Except under the circumstances stipulated in Articles 28 and 42 of the Patent Law, the date of filing mentioned in the Patent Law, where there is priority, means the priority date.
Circumstances that are not regarded as infringement
Article 69 of the Patent Law stipulates that there are two cases that are not regarded as infringement, including B and C. A is a legal purchase, under the principle of exhaustion. In case D, the production before the authorization date is not infringing, and the patent right produced after the authorization date is infringing.