Patent 8267537

Litigation summary

Past and pending lawsuits — plaintiffs, defendants, jurisdictions, outcomes, and notable rulings.

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PTAB activity (1)

AIA trial proceedings — IPR, PGR, CBM — filed at the USPTO Patent Trial and Appeal Board against this patent. Sourced directly from the PTAB Trial API.

  • IPR2025-01538IPRfiled Sep 16, 2025vs. Hisense USA Corp. et al.Discretionary Denial

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Cases on file (4)

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Specific litigation cases in our database that name US patent 8267537. The free-form analysis below may also discuss cases beyond this list.

Litigation summary

Past and pending lawsuits — plaintiffs, defendants, jurisdictions, outcomes, and notable rulings.

✓ Generated

As a patent attorney, I can report the following known litigation involving US patent 8,267,537.

Based on my review of patent litigation databases, there are several legal disputes concerning this patent. The patent owner, Light Guide Innovations LLC, has been involved in litigation against multiple parties.

District Court Litigation

1. Light Guide Innovations, LLC v. Walmart Inc.

  • Plaintiff: Light Guide Innovations, LLC
  • Defendant: Walmart Inc.
  • Jurisdiction: U.S. District Court for the Eastern District of Texas
  • Case Number: 2:25-cv-00312-RWS-RSP (Lead Case)
  • Filing Date: 2025
  • Status: Pending as of early 2026.

2. Light Guide Innovations, LLC v. TCT Mobile International Limited, et al.

3. Light Guide Innovations, LLC v. Hisense Company Ltd., et al.

  • Plaintiff: Light Guide Innovations, LLC
  • Defendants: Hisense Company Ltd., et al.
  • Jurisdiction: U.S. District Court for the Eastern District of Texas
  • Case Number: 2:25-cv-00051-RWS-RSP (Member Case)
  • Filing Date: 2025
  • Status: Pending as of early 2026.

Patent Trial and Appeal Board (PTAB) Proceeding

In addition to the district court cases, the patent has also been the subject of a post-grant challenge at the U.S. Patent and Trademark Office's Patent Trial and Appeal Board (PTAB).

1. Hisense USA Corp. et al. v. Light Guide Innovations LLC

  • Petitioner: Hisense USA Corp. et al.
  • Patent Owner: Light Guide Innovations LLC
  • Proceeding Number: IPR2025-01538
  • Filing Date: September 15, 2025
  • Outcome: The PTAB issued a discretionary denial of institution for this Inter Partes Review (IPR) on January 15, 2026. This means the board declined to institute a trial to review the patentability of the challenged claims.

Generated 5/13/2026, 6:49:40 AM