Under Armour has filed suit against Nike alleging that Nike has infringed certain Under Armour trademarks as a result of Nike’s use of the phrase “I Will” in advertisements. Under Armour alleges that Nike’s use of “I Will” infringes its trademark rights, dilutes a famous mark, e.g. the slogan “I will protect this house,” and constitutes unfair competition. Under Armour alleges that Nike launched an advertising campaign on its Facebook page and YouTube video page that repeatedly use the “I Will” trademark/tagline, and as a result, consumers have already associated Nike’s use of “I Will” with Under Armour.
Under Armour filed the lawsuit on February 21, 2013, in the United States District Court for the District of Maryland, Baltimore Division (1:13-cv-00571). Nike has not yet filed a response to the complaint. We will continue to monitor this action.