15.4 Definition-Trade Name/Commercial Name is a type of intellectual property that is used to protect a company's brand or product. It is typically a made-up name, phrase, logo, or other symbol that is associated with a company and used to distinguish its products or services from those of other companies. Trade names are also known as commercial names or brand names. There are two types of trade names: registered and unregistered. A registered trade name is one that has been officially registered with the appropriate state or federal office and has legal protection. An unregistered trade name is one that has not been officially registered and does not have legal protection.