What is the purpose or function of patent?

The function of patent right mainly includes the following aspects: first, the invention is effectively protected, the inventor applies for a patent for his invention, the patent office makes the invention public according to law, grants the patent right, gives the inventor the exclusive right to his invention within a certain period of time, and protects the invention as a property right according to law; Second, it can encourage citizens. The enthusiasm of legal persons to engage in invention and creation, give full play to the intelligence of the whole nation, and promote the rapid development of national science and technology; Third, it is conducive to the popularization and application of inventions, promoting the transformation of advanced science and technology into productive forces as soon as possible, and promoting the development of the national economy; Fourth, promoting the publicity and dissemination of inventions and technologies to the whole society and avoiding repeated research and development of the same technology are conducive to promoting the continuous development of science and technology.