A trade mark is a brand name, a slogan or a logo. It identifies the services or goods of one person and distinguishes it from the goods or services of another. A brand name is a word or combination of words, e.g Microsoft, Apple, Nokia. A slogan is a short phrase or a sentence, and a logo is a distinctive picture or symbol. These aspects of a product of a service provide a distinctive identity in the marketplace that can be used to create a competitive edge over competitors.