Causam Enterprises power management patent affirmed invalid by Federal Circuit

On September 5, 2025, the Federal Circuit affirmed the PTAB’s final decision, in a summary Rule 36 affirmance, confirming that the challenged claims (1-3, 5, 6, 8, 9, 11, 13-15, and 17) of U.S. Patent 10,396,592 were unpatentable. The ‘592 patent is owned by Causam Enterprises, Inc., an NPE. The ’592 patent relates to active load management systems and has been asserted in district court and the ITC against Ecobee, Resideo, Alarm.com, Xylem, and Itron.

View district court litigations by Causam Enterprises. To read the petition and view the case record, see Unified’s Portal. Unified was represented by in-house counsel, Jordan Rossen, and Michelle Aspen. Laura Vu at Haynes and Boone handled the Federal Circuit argument.

Route Guidance Systems vehicle guidance patent confirmed invalid by PTAB

On July 18, 2025, the PTAB confirmed the final rejection of all claims in the ex parte reexamination of U.S. Patent 6,917,876, owned by Route Guidance Systems LLC, an NPE. The ’876 patent is directed to route guidance systems for vehicles where the calculated route is transmitted from a central computer to a vehicle over a channel of communication in a short burst and is then closed, so that transmission to the vehicle ceases, unless and until a need for further transmission arises. The patent has been asserted against ExxonMobil, Verizon, MyPizza Technologies, Honda, Grubhub, HERE Global, DoorDash, MapleBear, Waitr, and others.

View district court litigations by Route Guidance Systems. Unified was represented by in-house counsel, Kelly Hughes, Michelle Aspen, and Roshan Mansinghani.

To view any documents for the reexamination proceedings on Unified's Portal, go to https://portal.unifiedpatents.com/exparte/90015113.

Fortress entity DivX video codec patent affirmed invalid by Federal Circuit

On June 24, 2025, the Federal Circuit affirmed the Patent Office's final decision, in a summary Rule 36 affirmance, confirming that the challenged claims 1 and 10 of U.S. Patent 10,326,987 were unpatentable. Owned by DivX, LLC, an affiliate of Fortress Investment Group, this filing was a part of Unified's ongoing efforts in its SEP Video Codec Zone. The '987 patent was asserted against Hulu and is directed to encoding alternative streams of video for use in adaptive bitrate streaming.

View district court litigations by DivX. To read the petition and review the case record, view IPR2021-01476 on Unified’s Portal. Unified was represented by Angela Oliver, Adam Erickson, Debbi McComas, and David McCombs of Haynes and Boone, and by in-house counsel, Jessica L.A. Marks and Roshan Mansinghani.

Better Browsing web browser patent affirmed invalid in ex parte appeal

On January 28, 2025, the Patent Trial and Appeal Board (PTAB) affirmed the Examiner’s final rejection of all claims of U.S. Patent 8,838,736, owned and asserted by Better Browsing LLC. The '736 patent relates generally to a zoom feature for an internet browser and had been asserted against Samsung, Hewlett Packard, Lenovo, Opera Norway AS, Toshiba, Acer, Razer, and ASUSTeK.

View district court litigations by Better Browsing. Unified was represented by Chris Coulson at Skadden, Arps, Slate, Meagher & Flom LLP, and by in-house counsel, David Seastrunk and Roshan Mansinghani.

To view any documents for the reexamination proceedings on Unified's Portal, go to https://portal.unifiedpatents.com/exparte/90020154.

IP Bridge HEVC/AV1 patent invalidity confirmed by Fed. Circuit

On December 3, 2024, the United States Court of Appeals for the Federal Circuit summarily affirmed the PTAB’s ruling that all challenged claims of U.S. Patent 7,515,635 are unpatentable under Rule 36. The patent is owned by Godo Kaisha IP Bridge. The patent was claimed to be essential as part of the Access Advance patent pool, as well as SISVEL’s VP9 and AV1 patent pools.

Unified was represented by Theodoros Konstantakopoulos of Desmarais LLP and in-house counsel, Roshan Mansinghani and Jessica L.A. Marks, in this proceeding.

To view any documents of the reexamination proceedings, visit Unified’s portal: https://portal.unifiedpatents.com/exparte/90014645