In the United States, USPTO has a registered trademark database, which is open to the public. A licensed lawyer may be asked to explain the search results. Because trademarks are governed by federal, state and common law, it is very important to thoroughly search for the availability of trademarks. Obtaining the results of trademark search in the United States, relying on the opinions issued by lawyers, may make trademark users avoid paying high damages and attorney fees in trademark infringement cases, because it shows that trademark users are doing their duty and making good use of this trademark. Within the scope of the European Union, the search must be carried out in consideration of EU trademarks and national trademarks. There is a classification system to help search for tags. An example is the International Classification of Trademark Image Elements, better known as the Vienna Classification. American trademark registration
So China people can apply for American trademarks.