Amazon is becoming more and more strict in catching infringement issues. I personally recommend that when selecting products, everything from rough judgment to specific confirmation cannot be omitted. The first is a rough judgment. You can use product selection software to confirm the brand registration proportion of a category in advance. I use sorftime. When selecting products, I check it first. If the registration rate is high, such as 80 or 90, then I know that the risk of infringement must be high without going into detail. If it is low, I can further verify the specific infringement. risk. For specific verification, you need to use a professional patent query website. The most commonly used one is Google Patent, which is very convenient and can be used for free. However, sometimes the semantic ambiguity is high and it may not be so accurate, so I will also cooperate with some paid patent query websites to check it. Going this way, I haven’t encountered any infringement issues so far~