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.

Another Wilus Wi-Fi patent challenged

On September 23, 2025, Unified filed an ex parte reexamination proceeding against U.S. Patent 10,305,638, owned and asserted by Wilus Institute of Standards & Technology, Inc., an entity of Good Day to Invent, Inc. The claims of the '638 patent are directed to access points configured to transmit a trigger frame with a particular structure to one or more stations to coordinate a multi-user uplink transmission from the station(s). The '638 patent has been asserted by Wilus against Askey, and it is related to patents that have been asserted against Samsung and HP Inc.

View district court litigations by Wilus. Unified is represented by Alexander Stein at Morgan Lewis, and by in-house counsel, Jessica L.A. Marks and Michelle Aspen, in this proceeding.

$2,000 awarded for Proxense authentication patent prior art

Unified is pleased to announce PATROLL crowdsourcing contest winners, Jake Winter, Tanya Chauhan, and Vivek Yadav, who split an award of $2,000 for their prior art submissions on U.S. Patent 9,450,956, owned and asserted by Proxense LLC, an NPE. The ‘956 patent details a secure authentication system comprising a Personal Digital Key (PDK), a Reader, and associated methods and devices to authorize individuals for data access or application use, based on biometric and profile authentication. It had been asserted against Hyundai.

We would also like to thank the dozens of other high-quality submissions that were made on this patent. The ongoing contests are open to anyone, and include tens of thousands of dollars in rewards available for helping the industry to challenge NPE patents of questionable validity by finding and submitting prior art in the contests. Visit PATROLL today to learn more about how to participate.

WINNING SUBMISSION

Two SVV Technology display patents challenged

On September 19, 2025, Unified filed two ex parte reexamination proceedings against U.S. Patent 8,740,397 and U.S. Patent 10,613,306, owned and asserted by SVV Technology Innovations, Inc.

The '397 patent generally relates to a light distribution system for display devices, more specifically drawn to a light guide member including a corrugated surface with transparent optical windows. The ’397 patent is currently asserted against Acer and ASUSTek accusing a large number of their products containing displays (i.e., laptops, tablets), and was previously asserted against Samsung and Micro-Star. The ex parte reexamination request challenges claims 1-3, 5, 7, 9-15, and 17-19 of the ‘397 patent.

The ‘306 patent generally relates to a light distribution system for display devices, more specifically drawn to a light guide member with corresponding structures (e.g., "discrete cavities") formed in a flexible, transparent optical sheet. The '306 patent is currently asserted against Acer and ASUSTek and was previously asserted against Samsung and Micro-Star. The ex parte reexamination request challenges claims 1-2, 4-7, 9-34, and 36-43 of the ‘306 patent.

View district court litigations by SVV Technology Innovations. Unified is represented by in-house counsel, Kelly Hughes and Andrea Shoffstall, in these proceedings.

Dialect natural language patent challenge instituted

On September 19, 2025, 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 8,015,006, owned and asserted by Dialect, LLC, an NPE. The ‘006 patent relates to the use of "context-specific domain agents" for generating a response to a user's spoken query. It is currently asserted against several parties, including Meta, Microsoft, and Google, and was previously asserted against Amazon.

View district court litigations by Dialect. Unified is represented by in-house counsel, Andrea Shoffstall and Jessica L.A. Marks, in this proceeding.

To view the reexamination request, visit Unified’s Portal: https://portal.unifiedpatents.com/exparte/90015338