What are the types of compulsory licensing of patent rights?

Patent right is an important right of patent inventor, and we need to know the relevant provisions in compulsory license. Then, what are the types of compulsory licensing of patent rights in law? This is something that everyone needs to know well to help. What are the types of compulsory licensing of patent rights? 1. Article 48 of the Compulsory License under Reasonable Conditions stipulates that the patentee has not implemented or fully implemented his patent for three years from the date of granting the patent right and four years from the date of filing the patent application; The patentee's behavior of exercising the patent right is recognized as monopolistic behavior according to law. In order to eliminate or reduce the adverse effects of this behavior on competition, a compulsory license may be granted to exploit the invention patent or utility model patent. 2. Article 49 of the Patent Law stipulates that in case of national emergency or extraordinary circumstances, or for the purpose of public interest, the patent administration department in the State Council may grant compulsory license to exploit the invention patent or utility model patent. Article 50 stipulates that, for the purpose of public health, the patent administration department of the State Council may grant compulsory licenses for the manufacture and export of patented drugs to countries or regions that meet the requirements of relevant international treaties to which People's Republic of China (PRC) is a party. Article 52 stipulates that the invention-creation involved in compulsory license is semiconductor technology, and its implementation is limited to public interests and the purpose of restricting monopoly. 3. Compulsory License for Dependent Patents Article 5 1 of the Patent Law stipulates that if the invention or utility model for which a patent right is granted is of great economic significance and its implementation depends on the implementation of the previous invention or utility model, the patent administration department in the State Council may grant a compulsory license for the implementation of the previous invention or utility model upon the application of the latter patentee. The above three aspects are the introduction of the types of compulsory licensing of patent rights, which need unclear people to have relevant understanding to better handle. Of course, in practice, we also need to understand the legal provisions clearly, so as to be more helpful to inventors.