How long is the patent valid?

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. After authorization, the annual fee should be paid to the State Patent Office every year, and the payment time is once a year, currently within one month. The term of patent protection refers to the term of patent protection after the patent is granted the right.