15.19 Infringement-Likelihood of Confusion-Factor-Strength of Trademark is a legal concept used to assess the likelihood of confusion between two trademarks. It is an important factor used to determine whether a trademark infringement has occurred. There are three main types of 15.19 Infringement-Likelihood of Confusion-Factor-Strength of Trademark: the strength of the trademark, the degree of similarity between the trademarks, and the marketing channels used for each. The strength of the trademark is determined by its distinctiveness, recognition, and enforceability. The degree of similarity between the trademarks is assessed based on the visual, aural, and conceptual similarity. Lastly, the marketing channels used for each trademark are taken into consideration, such as the products or services being sold, the target audience, and the geographic area.