Another ISG Wi-Fi 6 patent challenged

On October 1, 2025, Unified Patents filed an ex parte reexamination proceeding against U.S. Patent 11,641,670, owned and asserted by the International Semiconductor Group, an NPE. The '670 patent is directed to access points (APs) that are configured to use information that associates MAC addresses for terminals with association identifiers (AIDs) that are locally allocated to the terminals by the AP. The goal of this is to create a smaller list of AID-assigned terminals that is faster to search, and which allows the AP to respond quicker to the associated terminals. The '670 patent is one of over 20 patents divested from Toshiba in April this year and belongs to one of the largest families in that transfer. The '670 patent is challenged as part of Unified’s SEP Wi-Fi zone.

View ITC litigations by ISG. Unified is represented by Stephen Cortiaus and Payam Rashidi at Slater Matsil, and by in-house counsel, Jessica L.A. Marks and Vinu Raj, in this proceeding.

Fortress Investment entity, DivX, video streaming patent challenged

On September 19, 2025, Unified Patents filed an ex parte reexamination proceeding against U.S. Patent 11,611,785, owned and asserted by DivX LLC, an NPE and entity of Fortress Investment Group LLC. The ‘785 patent is generally directed to encoding video at different bit rates and evaluating the quality to provide the lowest bitrate at which the highest quality video can be achieved for a given resolution and frame rate. It has been asserted against Amazon.com and Amazon Web Services for their provision of streaming content. The ‘785 patent is relevant to MPEG-DASH and streaming providers generally.

View district court litigations by DivX. Unified is represented by Jonathan Bowser and Adam Erickson at Haynes Boone, and by in-house counsel, Jessica L.A. Marks and Michelle Aspen, in this proceeding.

Dolby VVC patent revocation confirmed by EPO appeal

On July 7, 2025, the EPO Board of Appeals confirmed the decision to revoke all claims of EP 3675491, owned by Dolby International AB. EP ‘491 generally relates to video coding techniques that use data hiding to decrease bandwidth. The patent is related to patents that are designated essential to the Access Advance patent pool and has also been identified as potentially essential to the Versatile Video Coding (VVC) standard.

Unified was represented by Dr. Andrew McGettrick and Dr. Susan Keston at HGF Law, and by in-house counsel, Jessica L.A. Marks and Roshan Mansinghani.

Dolby HEVC patent revocation confirmed by EPO appeal

On July 7, 2025, the EPO Board of Appeals confirmed the decision to revoke all claims of EP 3694209 B1, owned by Dolby International AB. EP ‘209 generally relates to video coding techniques that use data hiding to decrease bandwidth. The patent is related to others that have been designated essential to the Access Advance (HEVC) pool. EP ’209 has also been identified as potentially essential to the Versatile Video Coding (VVC) standard. This filing is a part of Unified’s ongoing efforts in its SEP Video Codec Zone.

Unified was represented by Dr. Andrew McGettrick and Dr. Susan Keston at HGF Law, and by in-house counsel, Jessica L.A. Marks and Roshan Mansinghani.

International Semiconductor Group Wi-Fi 6 patent challenged

On September 19, 2025, Unified Patents filed an ex parte reexamination proceeding against U.S. Patent 12,137,063, owned and asserted by the International Semiconductor Group, an NPE. The '063 patent is directed to coordinating transmissions for adjacent access points (APs) that have overlapping coverage areas. The '063 patent is one of over 20 patents divested from Toshiba in April this year and belongs to one of the largest families in that transfer. The '063 patent is also related to an application currently pending before the Office.

View ITC litigations by ISG. Unified is represented by Stephen Cortiaus at Slater Matsil, and by in-house counsel, Jessica L.A. Marks and Vinu Raj, in this proceeding.