What is the object of patent protection stipulated in the patent law?

According to the relevant provisions of the Patent Law, the objects of patent protection are as follows: 1. Invention; 2. utility model; 3. design. Article 59 of the Patent Law stipulates that the scope of protection of the patent right for invention or utility model shall be subject to the content of the claim, and the content of the claim may be explained by the specification and drawings. The protection scope of the patent right of design shall be subject to the design of the product shown in the picture or photograph, and the brief description can be used to explain the design of the product shown in the picture or photograph.