Acacia entity, Stingray IP, Wi-Fi patent found invalid

On May 20, 2026, the Central Reexamination Unit (CRU) entered a notice of intent to issue a reexamination certificate cancelling all challenged claims of U.S. Patent 7,224,678, owned and asserted by Stingray IP Solutions, an NPE and entity of Acacia Research Corporation. The Examiner maintained the rejections of all challenged claims of the ‘678 patent. The ‘678 patent relates to detecting an intrusion in a network system. It was asserted against Leedarson IoT, Schlage Lock, Hewlett Packard Enterprise, Vivint, and Allegion.

View district court litigations by Stingray IP. Unified was represented by in-house counsel, Alyssa Holtslander and Roshan Mansinghani, in this proceeding.

To view the reexamination request, visit Unified’s Portal: https://portal.unifiedpatents.com/exparte/90019718

Acacia entity, Atlas Global, Wi-Fi patent challenge granted

On April 22, 2026, after Unified filed an ex parte reexamination, the Central Reexamination Unit (CRU) granted Unified’s request, finding substantial new questions of patentability on all challenged claims of U.S. Patent 9,628,310, owned and asserted by Atlas Global Technologies, LLC, an NPE and Acacia Research entity. The ‘310 patent is directed to the format of HE LTFs (high efficiency long training fields) for various combinations of HE LTF modes and channel bandwidths in Wi-Fi transmissions. The patent is currently being asserted against HPE, but has been asserted against Arcadyan Technology, Dell, and Vantiva in the past.

View district court litigations by Atlas Global. Unified is represented by Ava Chuang and Stephen Cortiaus of Slater Matsil, and in-house counsel, Jessica L.A. Marks and David Seastrunk.

To view the reexamination request, visit Unified’s Portal: https://portal.unifiedpatents.com/exparte/90016012

Acacia entity, Atlas Global, Wi-Fi patent challenged

On February 27, 2026, Unified filed an ex parte reexamination proceeding against U.S. Patent 9,628,310, owned and asserted by Atlas Global Technologies, LLC, an NPE and Acacia Research entity. The ‘310 patent is directed to the format of HE LTFs (high efficiency long training fields) for various combinations of HE LTF modes and channel bandwidths in Wi-Fi transmissions. The patent is currently being asserted against HPE, but has been asserted against Arcadyan Technology, Dell, and Vantiva in the past.

View district court litigations by Atlas Global. Unified is represented by Ava Chuang and Stephen Cortiaus of Slater Matsil, and in-house counsel, Jessica L.A. Marks and David Seastrunk.

Another Atlas Global Wi-Fi patent challenged

On December 22, 2025, Unified filed an ex parte reexamination proceeding against U.S. Patent 10,348,471, owned and asserted by Atlas Global Technologies, LLC, an NPE and Acacia Research entity. The ‘471 patent is generally directed to Wi-Fi apparatuses and methods for indicating the use of and providing information for a central resource unit (RU) when using channel bandwidths where the central RU is available for allocation (e.g., bandwidths of 80 MHz or greater). The patent is currently being asserted against HPE, accusing Wi-Fi 6 (802.11ax) standard features.

View district court litigations by Atlas Global. Unified is represented by in-house counsel, Jessica L.A. Marks and T.J. Murphy.

Another Stingray IP Wi-Fi patent challenged

On January 16, 2025, Unified Patents filed an ex parte reexamination proceeding against U.S. Patent 7,440,572, asserted by Stingray IP Solutions, an NPE and entity of Acacia Research Corporation. The ‘572 patent relates to a secure wireless LAN device that encrypts both address and data information. It is currently being asserted against Leedarson IoT, Schlage Lock, and Hewlett Packard Enterprise Company, and is being challenged in a declaratory judgment (DJ) by Aidot.

View district court litigations by Stingray IP. Unified is represented by in-house counsel, Kelly Hughes and Roshan Mansinghani, in this proceeding.