The role of patent number:
1. differentiation function: it can distinguish similar products of other enterprises from their own products to avoid confusion among consumers;
2. Warning function: Since patents are protected by national laws, no one may copy and sell them without permission;
3. Advertising function: Consumers usually think that products marked with patent marks or patent numbers are superior to similar traditional products in technical performance and use function, so they will trust the quality of products and expand their market share.
legal ground
Patent Law of People's Republic of China (PRC) Article 1 This Law is formulated for the purpose of protecting the legitimate rights and interests of patentees, encouraging inventions and creations, promoting the application of inventions and creations, improving innovation ability, and promoting scientific and technological progress and economic and social development.