ZeniMax has filed a trademark for "Dragonborn", reports Fusible, noting that the parent of Skyrim developer Bethesda Softworks also recently trademarked the term "Fus Ro Dah" after the game's dragonborn shout. It's not clear if they intend to use these terms in game titles, if they are protecting their IP from exploitation by third-parties, or both. Thanks VG247.