In DSL Campaign, Sisvel Turns from CenturyLink and Frontier to Verizon

  • November 6, 2018
  • Networking, New Patent Litigation

In August 2017, Sisvel International S.A. (d/b/a Sisvel Group) launched a litigation campaign over a portfolio of former Panasonic patents allegedly essential to the practice of the ITU G.994.1 standard related to DSL technology, asserting nine of them first against CenturyLink and then Frontier Communications. At the end of this past September, the CenturyLink case ended in a dismissal with prejudice after multiple stays to permit the parties to finalize an agreement resolving their disputes, and a similar set of stays has been entered in the case against Frontier, suggesting that an end to that case is imminent. Against this backdrop, Sisvel has filed a new suit, against Verizon (1:18-cv-01742), asserting the same nine patents and accusing Verizon of infringement through the provision of “DSL technology, equipment and services” that comply with the same standard.


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