How many years is the international patent valid for?

Legal analysis: The term of patent protection refers to the time period for patent protection after the patent is granted rights. The patent protection period varies from country to country. The patent protection period in my country is twenty years.

Legal basis: "Patent Law of the People's Republic of China" Article 42 The term of invention patent rights is twenty years, and the term of utility model patent rights and design patent rights is ten years , are calculated from the date of application.