lululemon Lawsuit Alleges Patent Infringement by Calvin Klein, G-III Apparel

lululemon athletica Canada is alleging Calvin Klein Inc. and G-III Apparel Group infringed on three U.S. patents for its popular yoga pants in a lawsuit filed in the U.S. District Court for the District of Delaware. lululemon, a Vancouver, BC-based company with 108 stores in the United States, alleges both companies infringed up to three U.S. patents when G-III made the pants for Calvin Klein, which sold them.