Two Wilus Wi-Fi patents challenged

On August 29, 2025, Unified filed two ex parte reexamination proceedings against U.S. Patent 10,820,233 and U.S. Patent 10,931,396, owned and asserted by Wilus Institute of Standards & Technology, Inc., an entity of Good Day to Invent, Inc.

The '233 patent is generally directed to wireless terminals that receive an A-MPDU (aggregated MAC protocol data unit) that includes a MSDU (MAC service data unit) or A-MSDU (aggregated MSDU) from multiple users and transmits back a block ACK (block acknowledgement) to at least some of those users, where the block ACK has a particular format dictated by the numerous elements of the claims. It has been asserted against Askey Computer Corporation and its routers, which are Wi-Fi 6 (802.11ax) enabled devices.

The '396 patent is generally directed wireless terminals that receive an A-MPDU (aggregated MAC protocol data unit) with a particular delimiter field that directs the device on the specific format of the response frame to transmit back. Like the '233, the '396 patent has been asserted against Askey and its routers, which are Wi-Fi 6 (802.11ax) enabled devices. The '396 patent is also related to U.S. Patent 11,664,926, which has been asserted against Samsung, HP Inc., and Askey.

View district court litigations by Wilus. Unified is represented by Michael Jones and Jake Rosvold of Rothwell Figg, and by in-house counsel, Jessica L.A. Marks and Michelle Aspen, in this proceeding.

Malikie MPEG-DASH related patent challenge instituted

On August 25, 2025, less than one month after Unified filed an ex parte reexamination, the Central Reexamination Unit (CRU) granted Unified’s request, finding substantial new questions of patentability on the challenged claims of U.S. Patent 8,392,598, owned and asserted by Malikie Innovations Limited, an NPE and entity of Key Patent Innovations Limited. The '598 patent is generally directed to streaming media content to user devices, and allowing the user devices to control the format of the media downloaded based on conditions such as available bandwidth. Although not declared to any video codec standard, this patent is relevant to MPEG-DASH.

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

To view the reexamination request, visit Unified’s Portal: https://portal.unifiedpatents.com/exparte/90015413

Ascend Innovations entity, Byteweavr, validation patent challenge instituted

On February 21, 2025, less than two months 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 6,862,488, owned and asserted by Byteweavr, LLC, an NPE and Ascend Innovations entity. The ‘488 patent relates to automated validation and workflow management. It has been asserted against Databricks and Cloudera.

View district court litigations by Byteweavr. Unified is represented by in-house counsel, Jordan Rossen and Michelle Aspen.

To view the reexamination request, visit Unified’s Portal: https://portal.unifiedpatents.com/exparte/90019801

Four separate CellSpinsoft data transfer patents challenged

On April 17, 2024, Unified Patents filed ex parte reexamination proceedings against U.S. Patent 8,862,757 and U.S. Patent 8,898,260, owned and asserted by Cellspinsoft, Inc., an NPE. The claims of the ‘757 and ‘260 patents are directed to uploading multimedia content from a mobile device as segmented data packets and addressing how to handle transmission errors during the uploads.

On April 30, 2024, Unified filed a third ex parte reexamination proceeding against U.S. Patent 8,904,030. The ‘030 patent is generally directed to uploading data to a remote server, where the data comes from a device that does not have network connectivity. The data is transferred from the capturing device to a mobile device via Bluetooth and then the mobile device uploads the data. The system is set up so that the capturing device can notify the mobile device when new data is available to upload.

On May 6, 2024, Unified filed a fourth ex parte reexamination proceeding against U.S. Patent 11,659,381. The ‘381 patent, similar to the '030 patent, is directed to uploading data to a remote server using a mobile device as an intermediary, where the data comes from a device that does not have network connectivity.

View district court litigations by Cellspinsoft. Unified is represented by in-house counsel, Alyssa Holtslander, Jessica L.A. Marks, and Roshan Mansinghani, in these proceedings. Raghav Bajaj, of Haynes Boone, drafted the ‘030 and ‘381 reexamination requests.

Helios MPEG-DASH patent challenged

On December 14, 2023, Unified Patents filed an ex parte reexamination proceeding against U.S. Patent 10,362,130, owned and asserted by Helios Streaming LLC, an NPE and entity of Ideahub, Inc. The ‘130 patent is relevant to systems that are compliant with the MPEG-DASH standard; its claims are directed to providing adaptive HTTP streaming services using metadata of media content to ensure smooth playback. It has been asserted against Crackle, Starz, Showtime, Vudu, Fandango, Warner Brothers, and HBO.

View district court litigations by Helios. Unified is represented by Ryan Stronczer and Cono Carrano of Akin Gump, and by in-house counsel, Jessica L.A. Marks and Michelle Aspen.