The main purpose is to check whether the trademark you want to register has been registered in this category. You can check it on the Trademark Network and some related similar tools. If you want detailed and specific query results, you can entrust Zhiguoguo to query it. Zhiguoguo started with free trademark registration and is doing well. Now it has received US$1 million in angel investment from Lenovo Star, and a total of US$3.7 million in Series A investment from Lenovo Star and Matrix Partners China.