Legal analysis: Take the invention patent as an example, the term of intellectual property protection is 20 years, and the term of utility model patent and design patent is 10 years, both from the date of application. Because at least formal examination is required, the application date and authorization date of a patent can never be the same day. According to Articles 39 and 40 of the Patent Law, although the invention patent right, utility model patent right and design patent right all take effect from the date of authorization announcement, the term of rights shall be calculated forward from the date of application, that is, 10 or 20 years.
Legal basis: Intellectual Property Law of the People's Republic of China Article 1 This Law is formulated in accordance with the Constitution in order to protect the copyright of authors of literary, artistic and scientific works and their rights and interests related to copyright, encourage the creation and dissemination of works beneficial to the construction of socialist spiritual civilization and material civilization, and promote the development and prosperity of socialist culture and scientific undertakings.