How many years does the law stipulate the patent term?

Legal analysis: the term of invention patent is 20 years, and the term of utility model patent and design patent is 10 years, both of which are counted from the date of application.

Legal basis: Article 42 of the Patent Law of People's Republic of China (PRC) has a term of 20 years, and the term of utility model patent and design patent is 10 years, counting from the date of filing.