Patent 7851394
Litigation summary
Past and pending lawsuits — plaintiffs, defendants, jurisdictions, outcomes, and notable rulings.
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No PTAB proceedings on file. This patent has not been challenged through Inter Partes Review, Post-Grant Review, or Covered Business Method review at the USPTO. The absence is itself a signal — well-asserted patents eventually attract IPRs.
Cases on file (2)
Group view →Specific litigation cases in our database that name US patent 7851394. The free-form analysis below may also discuss cases beyond this list.
- 337-TA-1433U.S. International Trade Commissionongoing
Defendants: TCL China Star Optoelectronics Technology Co Ltd, Hisense USA Corporation, Caihong Display, and 5 others
- IPR2025-00439Patent Trial and Appeal Board (PTAB)Not Instituted - Procedural
Defendants: Corning Incorporated
Litigation summary
Past and pending lawsuits — plaintiffs, defendants, jurisdictions, outcomes, and notable rulings.
US Patent 7851394 is involved in several litigation cases, primarily before the U.S. International Trade Commission (ITC) and the Patent Trial and Appeal Board (PTAB). Here's a breakdown of the known cases:
International Trade Commission (ITC) Investigations:
Case Number: 337-TA-1433
- Plaintiff(s): Corning Incorporated
- Defendant(s): TCL China Star Optoelectronics Technology Co Ltd, Hisense USA Corporation (partially terminated), Caihong Display, TTE, Xianyang, HKC Corp, VIZIO, Inc., LG Electronics U.S.A., Inc. (terminated)
- Jurisdiction: U.S. International Trade Commission
- Filing Date: December 18, 2024
- Current Status/Outcome: This investigation is ongoing. As of April 21, 2026, the Commission determined not to review an initial determination partially terminating the investigation with respect to Hisense USA Corporation based on a settlement agreement. LG Electronics U.S.A., Inc. and VIZIO, Inc. were also terminated from the investigation based on settlement agreements in December 2025 and September 2025, respectively. The investigation has a target date for completion of October 12, 2026.
Case Number: 337-TA-1441
- Plaintiff(s): Corning Inc.
- Defendant(s): HKC Corp
- Jurisdiction: U.S. International Trade Commission
- Filing Date: January 31, 2025
- Current Status/Outcome: This investigation is pending before the Administrative Law Judge (ALJ). An Initial Determination on Violation of Section 337 and a Recommended Determination on Remedy and Bond were issued on April 7, 2026, finding a violation of Section 337 based on infringement of related patents (US8642491 and US8640498), though US7851394 was also asserted in the complaint. LG Electronics U.S.A., Inc. was terminated from this investigation based on a settlement agreement in December 2025.
Patent Trial and Appeal Board (PTAB) Cases:
- Case Number: IPR2025-00439
- Petitioner: Caihong Display Devices Co., Ltd.
- Patent Owner: Corning Incorporated
- Jurisdiction: Patent Trial and Appeal Board (PTAB)
- Filing Date: Not Instituted - Procedural (Note: The Google Patents entry indicates "Not Instituted - Procedural", while the detailed document refers to exchanges and rulings regarding the filing of expert declarations within the IPR process itself. This suggests the petition was filed, but institution may have been denied procedurally or is still under review/decision based on procedural issues rather than on the merits yet.)
- Current Status/Outcome: The PTAB case IPR2025-00439 was filed, but its institution status is listed as "Not Instituted - Procedural". Court documents from April 2025 indicate ongoing discussions and rulings regarding the petitioner's expert declaration, including a granted motion for the patent owner to file a motion to strike portions of the declaration.
Generated 5/15/2026, 12:45:22 PM