First of all. In China, patents include invention patents, utility model patents and design patents. (1) An invention patent refers to a new technical scheme proposed for a product, method or its improvement. (2) A patent for utility model refers to a new practical technical scheme for the shape, structure or combination of products. (3) A design patent 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 a product.
Therefore, products that look very similar may actually have different patents.