$4,000 for Proxense authentication patents prior art

Unified Patents added two new PATROLL contests, each with a $2,000 cash prize, seeking prior art on the list below. The patents are owned and asserted by Proxense LLC, an NPE. The ‘332 patent had been asserted against Hyundai but is currently asserted against LG. The ‘956 patent had been asserted against Hyundai.

The contests will expire on August 11, 2025. Please visit PATROLL for more information and to submit an entry for the contest. PATROLL researchers are required to use Pearl to generate claim charts. Submitted invalidity charts must address every limitation of the challenged claim. This may require using more than one prior art reference. PATROLL researchers are required to use Pearl to initially generate claim charts, and then researchers must add relevant figures and highlighting before submitting each chart. Each PATROLL researcher can generate up to 30 invalidity claim charts per month using Pearl. These charts can be downloaded then submitted to PATROLL.

US 9,251,332 - Personal Digital Keys

US 9,450,956 - Automatic Access to Applications and Data

InterDigital video codec patent challenged

On July 16, 2025, Unified Patents filed an ex parte reexamination proceeding against U.S. Patent 10,805,610, owned by InterDigital VC Holdings. The '610 patent relates to coding groups of pixels within blocks. It has been asserted against The Walt Disney Company.

View district court litigations by InterDigital. Unified is represented by in-house counsel, Michelle Aspen, Jessica L.A. Marks, and Roshan Mansinghani.

$3,000 for Proxense authentication patent prior art

Unified Patents added a new PATROLL contest, with a $3,000 cash prize, seeking prior art on at least claim 17 of U.S. Patent 11,095,640, owned and asserted by Proxense LLC, an NPE. The '640 patent focuses on a system and method for securely and automatically authenticating users to access data or applications, notably through radio frequency identification (RFID) and electronic authentication technologies. The patent has been asserted against Hyundai.

The contest will expire on July 31, 2025. Please visit PATROLL for more information and to submit an entry for the contest. PATROLL researchers are required to use Pearl to generate claim charts. Submitted invalidity charts must address every limitation of the challenged claim. This may require using more than one prior art reference. PATROLL researchers are required to use Pearl to initially generate claim charts, and then researchers must add relevant figures and highlighting before submitting each chart. Each PATROLL researcher can generate up to 30 invalidity claim charts per month using Pearl. These charts can be downloaded then submitted to PATROLL.

This PATROLL contest is co-sponsored by the Cloud Native Computing Foundation (CNCF) and is a part of a continuing series of contests in their Cloud Native Heroes Challenge program. Cloud native developers can earn swag and prizes by helping us defeat patent trolls. Find more information on CNCF and the challenges within the links below:

H2 Intellect geofencing patent challenged

On July 11, 2025, Unified Patents filed an ex parte reexamination proceeding against U.S. Patent 8,977,247, owned and asserted by H2 Intellect LLC, an NPE. The ‘247 patent generally relates to a system for delivering sponsored content to registered application programs based on users' geographic locations. It has been asserted against IBM, The Home Depot, and Amazon.

View district court litigations by H2 Intellect. Unified is represented by in-house counsel, Kelly Hughes and Jason Wejnert, in this proceeding.

Nchain blockchain patent challenged

On July 10, 2025, Unified Patents filed an ex parte reexamination proceeding against U.S. Patent 12,032,677, owned by Nchain Holdings Limited, an NPE. The ‘677 patent generally relates to consensus-based electronic ledgers, and in particular to blockchain implementations and technologies.

Unified is represented by Steven Cortiaus at Slater Matsil, and by in-house counsel, T.J. Murphy and Jason Wejnert, in this proceeding.