Digital Stream IP, LLC, an affiliate of monetization firm Dominion Harbor Enterprises, LLC and its litigating arm, Monument Patent Holdings, LLC, has filed suit against Sirius XM (1:18-cv-00087), following dismissals of cases against BMW, CBS Radio, Daimler (Mercedes-Benz), and iHeartMedia in the second half of 2017. The new complaint asserts one of three patents, generally related to digital audio tuners, already at issue in previous cases filed in the campaign.