Litigation summary

Known litigation involving US patent 8642491 as of April 26, 2026:

1. United States International Trade Commission (ITC) Investigation

   • Case Number: 337-TA-1441
   • Jurisdiction: International Trade Commission
   • Plaintiff(s): Corning Incorporated (as the current assignee of US8642491B2)
   • Defendant(s): Specific defendants are not immediately visible from the provided snippet but typically involve importers or manufacturers of infringing articles.
   • Filing Date: Not explicitly stated in the snippet, but the entry indicates it is an active US case.
   • Outcome/Current Status: Active.

2. Patent Trial and Appeal Board (PTAB) Inter Partes Review (IPR)

   • Case Number: IPR2025-01017
   • Jurisdiction: Patent Trial and Appeal Board (PTAB)
   • Plaintiff(s): Petitioner (not explicitly named in the snippet, but typically a challenger to the patent's validity)
   • Defendant(s): Corning Incorporated (as the patent owner)
   • Filing Date: Not explicitly stated in the snippet, but the "2025" in the case number indicates it was filed in 2025.
   • Outcome/Current Status: Not Instituted - Procedural. This means the PTAB decided not to proceed with the full IPR, likely due to a procedural reason rather than a judgment on the merits of the challenge.

The Google Patents page also mentions a general "Family has litigation" linked to Darts-ip. However, specific case details (plaintiff, defendant, jurisdiction, case number, filing date, and outcome/status) for additional cases were not directly available in the provided search results for this entry without navigating to the external Darts-ip link.

No specific litigation results from CAFC or PACER were directly returned in the provided search snippets for US patent 8642491.Known litigation involving US patent 8642491 as of April 26, 2026:

1. United States International Trade Commission (ITC) Investigation

   • Case Number: 337-TA-1441
   • Jurisdiction: International Trade Commission
   • Plaintiff(s): Corning Incorporated
   • Defendant(s): HKC Corp, Caihong Display Devices Co., Ltd., Hisense USA Corporation, TCL, TTE, and Xianyang. Hisense USA Corporation was terminated from the investigation based on settlement.
   • Filing Date: January 31, 2025
   • Outcome/Current Status: An Initial Determination (ID) was issued on April 7, 2026, finding a violation of Section 337 based on infringement of US Patent No. 8,642,491 and US Patent No. 8,640,498. The investigation is currently pending before the Commission, with a target date of August 6, 2026. The investigation as to respondent Hisense USA Corporation was terminated based on a settlement, with the Commission determining not to review the ALJ's ID granting the joint motion to terminate on April 20, 2026.

2. Patent Trial and Appeal Board (PTAB) Inter Partes Review (IPR)

   • Case Number: IPR2025-01017
   • Jurisdiction: Patent Trial and Appeal Board (PTAB)
   • Plaintiff(s): Not explicitly named in the provided search results, but referred to as "Petitioner".
   • Defendant(s): Corning Incorporated (as the patent owner).
   • Filing Date: The case number indicates it was filed in 2025. A precise filing date for IPR2025-01017 was not directly found in the provided search results.
   • Outcome/Current Status: Not Instituted - Procedural. This means the PTAB did not proceed with a full review of the patent's claims on procedural grounds.