After the US trademark registration is completed, the trademark needs to be protected in a timely manner. The role of trademark protection is to protect the trademark use rights of trademark registrants and trademark use rights holders by law, prevent others from using trademarks that are identical or similar to their trademarks, and can hold criminals who infringe the exclusive rights of others' registered trademarks accountable. This is to ensure that consumers can distinguish different providers of goods or services through trademarks. At the same time, it can also protect the legitimate rights and interests of consumers and businesses to the greatest extent.