Invention refers to a new technical scheme proposed for a product, method or its improvement;
Utility model refers to a new practical technical scheme for the shape, structure or combination of products;
Appearance design refers to a new design with aesthetic feeling and suitable for industrial application based on the shape, pattern or combination of products and the combination of colors, shapes and patterns.
In other words, the patent law can protect products, methods, uses, shapes, patterns or their combinations, as well as the combination of colors, shapes and patterns.