Trademarks approved and registered by the state are protected by law. The only way to obtain the exclusive right to use a trademark is to submit an application for trademark registration to the Trademark Office.
With the improvement of people's awareness of brand protection, more and more people apply for registered trademarks, so many similar trademarks with the same name have appeared. Upon inquiry, many trademarks were registered by others first, which made it impossible to register many company names and trade names. This is an unavoidable problem for companies now.