Longhorn HD Files First Litigation from a Portfolio of Cloud Security Patents Divested by IV

May 12, 2019

In March 2019, Virtual Watchdog Solutions, LLC, an entity created in Delaware in June 2018, assigned to Longhorn HD LLC 14 patents that it had received from several affiliates of Intellectual Ventures LLC (IV) last July. The patents broadly relate to various aspects of networking (gateways, network security, mobile-VPNs, failure detection, etc.), the patents sourced prior to acquisition by IV from multiple different companies, including IP Dynamics, Ensim, OKI Electric, SteelCloud, Xerox, and individual inventors. Longhorn HD wasted little time asserting the first of these assets in litigation, suing Fortinet (2:19-cv-00124) in the Eastern District of Texas over five of them in mid-April. The new campaign is Longhorn HD’s second to date.

View full article with free 14-day trial
($79/month thereafter)

  • Over 7,000 news articles covering new patent cases, key policy decisions, and USPTO assignments
  • Advanced custom alerts for campaigns and parties
  • Proprietary litigation timelines
  • Full access to Federal Circuit, PTAB, and ITC dockets
  • Judge, venue, and law firm analytics


Thank you for your feedback