According to the provisions of the patent law, there are three kinds of patents protected by the patent law in China: invention patents, utility model patents and design patents. The technical scheme described in the invention patent can be a physical device or a method for manufacturing physical products. The technical scheme described in the utility model patent can only be a physical device; The design patent describes an aesthetic design plane or three-dimensional modeling that can be used in actual products.
Accordingly, the device can apply for invention patent and utility model patent; Methods You can only apply for an invention patent; Aesthetic design plane or three-dimensional modeling can only apply for design patent.