On November 9, 2021, the Patent Trial and Appeal Board (PTAB) issued a final written decision in Unified Patents, LLC v. Longhorn HD LLC holding all challenged claims of U.S. Patent 7,260,846 invalid. Longhorn HD LLC, an NPE, is an affiliate of Alpha Alpha Intellectual Partners, LLC. The ’846 patent was previously owned by Intellectual Ventures and is directed to cybersecurity techniques including detecting malicious network behavior. It had been asserted against Fortinet, Juniper Networks, and Check Point, but new assertions include NetScout Systems, Mitel Software, and Trend Micro.

View Longhorn HD’s district court litigation. To read the petition and view the case record, see Unified's Portal. Unified is represented by David Tennant (now at Allen & Overy) and David Markoff of White & Case, and in-house counsel, Roshan Mansinghani and Jung Hahm, in this proceeding.