Litigation summary

Known Litigation Involving US Patent 8,671,139

As a senior patent analyst, a review of litigation records for U.S. Patent 8,671,139 ("the '139 patent") reveals multiple legal disputes. The patent's assignee, Almondnet, Inc. (and its related entities like Intent IQ, LLC), has actively asserted this patent against numerous major technology companies. Below is a detailed list of known litigation involving this specific patent, based on available court and patent office records as of April 29, 2026.

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District Court Litigation

• Plaintiff: Almondnet, Inc.

  • Defendant: Amazon.com, Inc.
  • Jurisdiction: U.S. District Court for the Western District of Texas
  • Case Number: 6:21-cv-00891
  • Filing Date: August 24, 2021
  • Status/Outcome: This case is highly notable. On October 4, 2024, a jury found that Amazon willfully infringed the '139 patent (along with U.S. Patent Nos. 10,134,054; 11,301,898; and 11,610,226), and awarded Almondnet over $142 million in damages. As of this analysis, post-trial motions may be pending, and an appeal to the Court of Appeals for the Federal Circuit (CAFC) is anticipated, though not yet docketed for 2026 according to the "Previously generated sections."

• Plaintiff: Intent IQ, LLC

  • Defendant: Amazon.com, Inc.
  • Jurisdiction: U.S. District Court for the District of Delaware
  • Case Number: 1:23-cv-01373
  • Filing Date: December 14, 2023
  • Status/Outcome: This case is currently active and ongoing.

• Plaintiff: Intent IQ, LLC

  • Defendant: Google LLC
  • Jurisdiction: U.S. District Court for the Western District of Texas
  • Case Number: 6:21-cv-00876
  • Filing Date: August 19, 2021
  • Status/Outcome: This case is currently active and ongoing.

• Plaintiff: Almondnet, Inc.

  • Defendant: Roku, Inc.
  • Jurisdiction: U.S. District Court for the Western District of Texas
  • Case Number: 6:21-cv-00896
  • Filing Date: August 24, 2021
  • Status/Outcome: This case is currently active and ongoing.

• Plaintiff: Almondnet, Inc.

  • Defendant: Oracle America, Inc.
  • Jurisdiction: U.S. District Court for the Western District of Texas
  • Case Number: 6:21-cv-00897
  • Filing Date: August 24, 2021
  • Status/Outcome: This case is currently active and ongoing.

• Plaintiff: Almondnet, Inc.

  • Defendant: The Trade Desk, Inc.
  • Jurisdiction: U.S. District Court for the Western District of Texas
  • Case Number: 6:21-cv-00898
  • Filing Date: August 24, 2021
  • Status/Outcome: This case is currently active and ongoing.

• Plaintiff: Intent IQ, LLC

  • Defendant: Yahoo Inc.
  • Jurisdiction: U.S. District Court for the Northern District of California
  • Case Number: 4:22-cv-07515
  • Filing Date: December 2, 2022
  • Status/Outcome: This case is currently active and ongoing.

• Plaintiff: Intent IQ, LLC

  • Defendant: Adobe Inc.
  • Jurisdiction: U.S. District Court for the Northern District of California
  • Case Number: 4:22-cv-08911
  • Filing Date: December 29, 2022
  • Status/Outcome: This case is currently active and ongoing.

• Plaintiff: Almondnet, Inc. & Intent IQ, LLC

  • Defendant: AT&T Inc.
  • Jurisdiction: U.S. District Court for the District of Delaware
  • Case Number: 1:19-cv-00247
  • Filing Date: February 8, 2019
  • Status/Outcome: This case appears to be ongoing.

• Plaintiff: Almondnet, Inc.

  • Defendant: Microsoft Corporation
  • Jurisdiction: U.S. District Court for the Eastern District of New York
  • Case Number: 1:16-cv-01557
  • Filing Date: March 30, 2016
  • Status/Outcome: The current status of this older case is not definitively clear from available public dockets, but it demonstrates a longer history of litigation for the patent's owner.

Patent Trial and Appeal Board (PTAB) Proceedings

The '139 patent has also been challenged at the U.S. Patent and Trademark Office's Patent Trial and Appeal Board (PTAB) through inter partes review (IPR) and Covered Business Method (CBM) review petitions, which seek to invalidate the patent's claims.

• Proceeding: IPR2022-01262

  • Petitioner: Google LLC
  • Status/Outcome: Petition filed. The PTAB denied institution on the merits, meaning the trial did not proceed. This was a favorable outcome for the patent owner, Almondnet, Inc.

• Proceeding: IPR2022-01319

  • Petitioner: Roku, Inc.
  • Status/Outcome: Petition filed. The PTAB denied institution on procedural grounds.

• Proceeding: CBM2017-00058

  • Petitioner: Combination of multiple entities including AppNexus, Cable Television Laboratories, Index Exchange, MediaMath, OpenX, PubMatic, Rocket Fuel, Rubicon Project, and SpotXchange.
  • Status/Outcome: Petition filed. The PTAB denied institution on the merits.

The consistent denial of PTAB institution strengthens the perceived validity of the '139 patent, as the petitioners failed to demonstrate a reasonable likelihood that they would prevail in invalidating the claims. This track record likely played a role in the successful jury verdict against Amazon.