Patent 7557788
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.
- IPR2025-01004IPRfiled May 14, 2025vs. Hisense USA CorporationDiscretionary Denial
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Cases on file (2)
Group view →Specific litigation cases in our database that name US patent 7557788. The free-form analysis below may also discuss cases beyond this list.
- Phenix Longhorn, LLC v. AU Optronics Corporation et al.filed Oct 10, 20232:23-cv-00477-RWS-RSPU.S. District Court for the Eastern District of TexasJudgment
Defendants: AU Optronics Corporation, Hisense Electronica Mexico, S.A. de C.V., Hisense USA Corporation, and 1 other
- Phenix Longhorn, LLC v. Innolux Corporationfiled Oct 10, 20232:23-cv-00478U.S. District Court for the Eastern District of Texasterminated Jan 5, 2026Dismissed
Defendants: Innolux Corporation
Litigation summary
Past and pending lawsuits — plaintiffs, defendants, jurisdictions, outcomes, and notable rulings.
As a patent attorney, I can provide a summary of the known litigation involving U.S. Patent No. 7,557,788 as of April 26, 2026. This patent has been asserted in multiple legal actions by Phenix Longhorn, LLC.
Here is a list of the known litigation:
District Court Litigation
Case: Phenix Longhorn, LLC v. AU Optronics Corporation and Hisense Electronica Mexico, S.A. de C.V., et al.
- Plaintiff: Phenix Longhorn, LLC
- Defendants: AU Optronics Corporation, Hisense Electronica Mexico, S.A. de C.V., Hisense USA Corporation, and Hisense Visual Technology Co., Ltd.
- Jurisdiction: U.S. District Court for the Eastern District of Texas
- Case Number: 2:23-cv-00477-RWS-RSP
- Filing Date: October 10, 2023
- Outcome/Current Status: A jury trial concluded in January 2026. The jury found that the defendants did not infringe the asserted patents, including the '788 patent. Additionally, one of the asserted patents was found to be invalid.
Case: Phenix Longhorn, LLC v. Innolux Corporation
- Plaintiff: Phenix Longhorn, LLC
- Defendant: Innolux Corporation
- Jurisdiction: U.S. District Court for the Eastern District of Texas
- Case Number: 2:23-cv-00478
- Filing Date: October 10, 2023
- Outcome/Current Status: The case was closed on January 5, 2026, following a Stipulation of Voluntary Dismissal by the parties. This type of dismissal often indicates a settlement was reached between the parties.
Patent Trial and Appeal Board (PTAB) Proceedings
- Case: Innolux Corporation v. Phenix Longhorn LLC
- Petitioner: Innolux Corporation
- Patent Owner: Phenix Longhorn LLC
- Jurisdiction: Patent Trial and Appeal Board (PTAB)
- Case Number: IPR2025-00043
- Filing Date: October 14, 2024
- Outcome/Current Status: The PTAB exercised its discretion and chose not to institute an inter partes review for the challenged claims of the related U.S. Patent No. 7,233,305. The outcome for the '788 patent in a similar proceeding is not specified in the provided information.
It is important to note that litigation is a dynamic process, and the status of these cases can change. For the most current information, consulting official court and PTAB records is recommended.
Generated 5/14/2026, 6:46:21 AM