The functions of indicating the source of goods, supervising the quality of goods, guiding the purchase of goods, and advertising the sales of goods, etc.

1. The role of indicating the source of goods: Trademarks are an important symbol to distinguish producers and operators of the same goods and to distinguish different sources of the same products, and help safeguard the legitimate rights and interests of producers and operators.

2. Supervision of product quality: Trademarks can encourage producers to pay attention to business reputation and improve product quality; national competent authorities can also use trademark management to commend high-quality famous brand products and supervise and supervise inferior products. improve.

3. The guiding role of product purchase: Trademarks can help consumers clearly identify brands and purchase goods, safeguarding consumer interests; if the goods are of high quality and low price, consumers can use the trademarks to find producers and operators. , requesting a refund or exchange.

4. The advertising role of product sales: Trademarks can be used as a means of advertising to open up the market and expand sales; compared with advertising, trademarks are more economical, flexible and have a wider range of publicity.