What are the basic types of patents?

Domestic patent classification is mainly divided into three categories: 1. Design patent: Design refers to a new design with aesthetic feeling and suitable for industrial application, and refers to the shape and pattern of a product or the combination of colors, shapes and patterns. Generally speaking, all original designs involving product appearance can apply for design patents, and the protection period of design patents is currently 10 years. After June 2002 1 year/day, the protection period of design patent was extended from1year to1year. 2. Patent for utility model: Utility model refers to a new technical scheme suitable for practical use proposed by the pointer for the shape, structure or combination of products. The protection period of utility model patent is 10 year. 3. Invention patent: Invention 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. The protection period of invention patent is the longest in domestic patent classification, which is as long as 20 years.