Legal analysis: Copyright Law: passed in 199, revised for the first time in 21 and revised for the second time in 21. At present, the 21 version is in force.

patent law: it was passed in 1984, first amended in 1992, second amended in 2 and third amended in 28, and the current version is 28.

trademark law: it was passed in 1982, first amended in 1993 and second amended in 21, and the current version is the 21 version.

legal basis: copyright 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 science.