Trying to avoid infringement lawsuits when developing and distributing products that replicate technology from well-known brands is a high-risk legal and business practice. Even when using legal gray areas, caution is required, and the following points may be helpful but do not constitute legal advice: 1. **Reverse Engineering**: In some jurisdictions, legal reverse engineering may be allowed for research and compatibility purposes. This requires ensuring that you have obtained the product legally and that all steps are in compliance with legal requirements. 2. **Avoiding Patent Protection**: Ways to ensure that there is no patent infringement include conducting a detailed patent search and analysis during the product development phase to determine which technologies are not protected or whose patents have expired. 3. **Independent Development**: Ensuring that your product is independently developed without reference to any protected materials (such as source code or product design) may help prove that there is no copyright infringement. 4. **Different Functionality**: Designing your product to have different functions or improved user experience to avoid direct copying may reduce the risk of trademark or copyright infringement. 5. **Using Open Source Technology**: Relying on open source software or technology to build your product, as they generally allow greater freedom of use, but must follow the requirements of the open source license. 6. **Trademark and brand differentiation**: Establish a brand image that is clearly different from the original brand, including product names, logos, and market positioning, to reduce the possibility of trademark infringement. 7. **Licenses and authorizations**: Where possible, obtain a license for the use of technology or cooperate with brands to ensure legal use. Nevertheless, these strategies cannot guarantee complete avoidance of legal proceedings, and involve legal complexities and legal differences in different countries, so it is best to consult professional legal advisors before developing and distributing products.