What is the function of trademarks? Trademarks protect trademark registrants by ensuring that they have the exclusive right to mark goods or services or license others to use them for compensation. The term of protection varies, but after the expiration, the trademark can be renewed indefinitely as long as an extra fee is paid. Trademark protection shall be implemented by the court. In most systems, the court has the right to stop trademark infringement. Broadly speaking, trademarks reward trademark registrants to gain recognition and economic benefits, thus promoting the positive and enterprising spirit of the world. Trademark protection can also prevent unfair competitors, such as counterfeiters, from using similar distinctive signs to promote inferior or different products or services. This system enables skilled and enterprising people to produce and sell goods and services under as fair a condition as possible, thus promoting the development of international trade.