Using unauthorized well-known brands for marketing may involve infringement of trademark rights and other intellectual property rights, which may lead to legal disputes. To reduce the risk of legal sanctions, you may consider the following points, but please note that these suggestions cannot guarantee complete avoidance of legal issues. You should consult professional legal advisors for specific situations: 1. **Clarify the purpose and manner**: - **Descriptive use**: If the brand is only mentioned descriptively to explain the characteristics of the product or service, it may be "fair use" in some cases. Make sure not to imply sponsorship, endorsement or cooperation with the brand. - **Avoid confusion**: Make sure your marketing materials will not mislead consumers into thinking that there is an official association or authorized cooperation with the well-known brand. 2. **Use disclaimers**: - Clearly state that you have no official association with the brand in the appropriate place. For example: "This product is not related to [brand name] and its name is owned by its respective owner." 3. **Avoid trademark abuse**: - Do not change or tamper with brand identification, such as trademarks, logos, etc. - Avoid using the brand to imply sponsorship, certification or recommendation. 4. **Reference to legal principles**: - **Fair use**: In some jurisdictions, use for commentary, criticism, news reporting or educational purposes may be considered fair use, but the rationality of commercial use is more limited. - **Comparative advertising**: Some regions allow comparisons between your own products and those of competitors in advertising, but you must ensure that the comparison is true, accurate, and not misleading to consumers. 5. **Get legal advice**: - Since trademark laws may vary from country to country, it is recommended to consult a professional intellectual property lawyer before conducting relevant marketing activities to ensure that your practices comply with legal regulations. 6. **Consider brand authorization**: - The safest way is to obtain authorization or permission from the brand through formal channels to ensure that its brand resources are used within the legal scope. 7. **Monitoring and response**: - Continuously monitor your marketing activities to ensure that they do not exceed the scope of the license. If you receive a legal notice from the brand, you should communicate with your legal advisor in a timely manner and handle it properly. **Important tips**: Unauthorized use of well-known brands for commercial marketing may result in legal proceedings, compensation costs and damage to brand reputation. Therefore, it is important to fully understand the relevant legal provisions and seek professional legal advice before taking action.