2, utility model, refers to the product shape, structure or their combination is suitable for practical new technical solutions. For example, the company has invented adjustable feeding, dust removal and discharging devices, and can apply for utility model patents;
3. Appearance design refers to a new design that is aesthetically pleasing and suitable for industrial application based on the shape, pattern or combination of colors, shapes and patterns of products. For example, the shape, color and pattern of famous brand thermos cups can all apply for design patents.