According to the provisions of the patent law, can compulsory licensing be imposed on inventions and designs? why
Article 48 of the Patent Law: Where a unit that has the conditions for implementation requests the patentee of an invention or utility model for permission to exploit its patent under reasonable conditions, but fails to obtain the license within a reasonable period of time, the patent administration department of the State Council may, upon the application of the unit, grant a compulsory license to exploit the invention patent or utility model patent. Article 49 In case of national emergency or special circumstances, or for the purpose of public interest, the patent administration department in the State Council may grant a compulsory license to exploit a patent for invention or utility model. Article 50 Where the invention or utility model for which a patent right has been granted is a significant technological progress with great economic significance compared with the invention or utility model previously granted with a patent right, and its implementation depends on the implementation of the previous invention or utility model, the patent administration department of the State Council may, upon the application of the latter patentee, grant a compulsory license to exploit the previous invention or utility model. Where a compulsory license is granted in accordance with the provisions of the preceding paragraph, the administrative department for patent in the State Council may also grant a compulsory license to exploit the latter invention or utility model upon the application of the former patentee.