Adidas sues Under Armour for patent infringement

Adidas filed suit Tuesday against Under Armour and subsidiary MapMyFitness, alleging that the companies infringed on ten patents related to mobile fitness products.

The claims by Adidas AG, filed in U.S. District Court in Delaware, concern technology used in the German sports brand's miCoach products, which allow users to monitor workouts via GPS and wireless signals. At least one of the patents was filed as early as 2004 and granted in 2007.

The lawsuit alleges that Adidas intellectual property is being used in UnderArmour39 products, as well as the MapMyFitness heartrate monitor, among others. Under Armour unveiled its performance tracking products last March and in November announced the acquistion of MapMyFitness, which has suite of mobile applications and websites that allow users to map, record and share workout information.

In the suit, Adidas alleges that UnderArmour was aware of the Adidas patents because its director of innovation and research previously worked at Adidas as a senior innovation engineering manager.

The Locust Point company is engaged in an ambitious expansion bid, with November's acquistion of MapMyFitness representing an effort to move further into social media and digital fitness. In January, Under Armour also announced a deal to outfit sports teams at Notre Dame University, ending the Indiana school's longtime relationship with Adidas.

"MapMyFitness has been recognized as a pioneer in this category. We are aware of the lawsuit and are in the process of reviewing the complaint," Under Armour spokeswoman Diane Pelkey said in a statement.

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