A trademark or trade mark is a distinctive sign or needle used by an individual, business organization, or additional legal entity to identify that the products or services to consumers with which the trademark appears originate from a unique source, and to distinguish its harvest or services from those of other entities. In trademark treatises it is usually reported that blacksmiths who made swords in the Roman Empire are thought of as being the first users of trademarks. The owner of a registered trademark may originate legal proceedings for trademark infringement to prevent unauthorized use of that trademark. However, registration is not required. The owner of a common law trademark may also file suit, but an unregistered mark may be protectable only inside the geographical area within which it has been used or in geographical areas into which it may be reasonably expected to expand.
In trademark treatises it is usually reported that blacksmiths who made swords in the Roman Empire are thought of as life form the first users of trademarks Other notable trademarks that have been used for a long time include Lowenbrau, which claims use since 1383, and Stella Artois, which claims use since 1366.Registered trademarks engross registering the trademark with the government.