1. design patent: the patent law stipulates that "design refers to a new design that is aesthetically pleasing and suitable for industrial application based on the shape, pattern or combination of products and the combination of color, shape and pattern." Generally speaking, any original design involving product appearance can apply for a design patent. Some of our common appearance patents, such as the design of some clothes, the design of beverage bottles and dolls, all belong to this type. The protection period after applying for design patent authorization is 10 year.
2. Patent for utility model: refers to a new technical scheme for the shape, structure or combination of products, which is suitable for practical use. The protection period is 10 year, just like the design patent.
3. Invention patent: refers to a new technical scheme proposed for a product, method or its improvement. Unlike utility model patents, invention patents can be both products and methods, while utility model patents must be products. After the invention patent is granted, the protection period is the longest among domestic patent application types, and the time is 20 years.