Invention as mentioned in the patent law refers to a new technical scheme proposed for a product, method or its improvement. Divided into product invention and method invention.
Utility model refers to a new practical technical scheme for shape, structure or combination of the two. In some countries, it is called a gizmo.
Appearance design refers to a new design that is aesthetically pleasing and suitable for industrial application for the shape, pattern, color or their combination of products.