According to the laws of China, different kinds of intellectual property rights (copyrights, patents and trademarks) have different protection periods. According to the relevant provisions of the Copyright Law, the protection period of the author's right of signature, modification and protection of the integrity of the work is not limited. According to the relevant provisions of the Patent Law, the term of the invention patent right is 20 years, the term of the utility model patent right and the design patent right is 10 year, both of which are calculated from the date of application, and the validity period of the registered trademark is 10 year, which is calculated from the date of registration approval. Legal basis: According to Article 42 of the Patent Law of People's Republic of China (PRC), 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.