Legal analysis: How long is the term of patent protection? Patents are divided into inventions, utility models and designs. The protection period of inventions is 20 years, and that of utility models and designs is 10 year. 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.