Mealey's (January 28, 2020, 8:39 AM EST) -- ALEXANDRIA, Va. — In a Jan. 26 petition for inter partes review (IPR), the music-streaming service Spotify USA Inc. tells the Patent Trial and Appeal Board that a patented online playback system that provides individualized data streams would have been obvious to a person of skill in the art (Spotify USA Inc. v. Excalibur IP LLC, No. IPR2020-00462, PTAB)....