Intellectual Ventures LLC (through its subsidiary Intellectual Ventures II LLC) (IV) has filed a sixth lawsuit (2:17-cv-00661) against Deutsche Telekom (T-Mobile) in the same litigation campaign. The new case asserts six wireless communications patents, not seen previously in litigation, against the carrier, together with LM Ericsson. IV concurrently filed a new case (2:17-cv-00662) against Ericsson, Nokia (Alcatel-Lucent), and SoftBank (Nextel Operations, Sprint Spectrum), asserting the same six patents. While Ericsson was not named as a defendant in earlier cases in this campaign, Ericsson has brought nearly half of the 43 petitions for inter partes review (IPR) challenging various patents-at-issue.