A trademark, trade mark, or trade-mark is a recognizable sign,  design or expression which identifies products or services of a particular source from those of others. The trademark owner can be an individual, business organization, or any legal entity.

Trademark is also a symbol, word, or words legally registered or established by use as representing a company or product.

A trademark may be located on a package, a label, a voucher or on the product itself. For the sake of corporate identity trademarks are also being displayed on company buildings.