circuit board items belong to category 9, and circuit board design belongs to category 42. Generally, the number of registered first-class trademarks is around 1,2. Just ask the local intellectual property agency to help you register. Because it is necessary to determine whether your trademark name conforms to the trademark law, for example, the words circuit board do not conform, and these three words cannot be registered as trademarks. In addition, make sure whether the trademark name you want to register has already been registered. It is a waste of time and money to be registered or seriously similar. There are also some information and procedures.