Invention patents refer to inventions protected by patent law. The Implementing Rules of the Patent Law stipulate that "new technical solutions proposed for products, methods or improvements thereof" are inventions. Invention patents are not automatically generated and automatically effective. It needs to be reviewed by the competent patent agency and confirmed to meet the conditions stipulated in the patent law before it can obtain patent rights and become the object of patent law protection. The following are recognized as “inventions” by my country’s patent law: (1) Product inventions. It refers to various finished products or products created by people through intellectual labor. These products are unprecedented in nature and unprecedented in human society, and have practical application value. Objects that are completely in a natural state and exist without human processing or creation do not belong to product inventions. Material invention is the invention of a new compound of two or more elements obtained by a certain method. In a scientific sense, material invention is also a product invention.