1. Invention refers to a new technical scheme proposed for a product, method or its improvement.
2. Utility model refers to a new practical technical scheme for the shape, structure or combination of products.
3. 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 color and shape and pattern.
Second, how long is the patent valid?
The period of validity of the invention is 20 years, and the period of validity of the utility model and design is 10 years, counting from the date of application.