Patent 9531665
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 (0)
Specific litigation cases in our database that name US patent 9531665. The free-form analysis below may also discuss cases beyond this list.
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Litigation summary
Past and pending lawsuits — plaintiffs, defendants, jurisdictions, outcomes, and notable rulings.
Litigation History of US Patent 9,531,665
As of May 12, 2026, US patent 9,531,665, assigned to Contactwave LLC, has been asserted in multiple patent infringement lawsuits. The plaintiff in these cases, Contactwave LLC, is a patent assertion entity that focuses on licensing and enforcing its intellectual property without offering a commercial product. A review of court records indicates a pattern of litigation followed by early resolution, often through voluntary dismissal by Contactwave.
Below is a list of known litigation involving this patent:
1. ContactWave LLC v. Macy's, Inc.
- Jurisdiction: U.S. District Court for the Eastern District of Texas
- Case Number: 2:24-cv-00989
- Filing Date: December 2, 2024
- Status/Outcome: The case was voluntarily dismissed with prejudice by ContactWave LLC on January 9, 2026. This dismissal permanently prevents ContactWave from re-asserting claims from this patent against Macy's.
2. ContactWave LLC v. Nordstrom, Inc.
- Jurisdiction: U.S. District Court for the Eastern District of Texas
- Case Number: 2:24-cv-00993
- Filing Date: December 2, 2024
- Status/Outcome: This case was closed on January 9, 2026, following a voluntary dismissal with prejudice by ContactWave LLC. The dismissal bars any future infringement claims from this patent by ContactWave against Nordstrom.
3. ContactWave LLC v. TripAdvisor, Inc.
- Jurisdiction: U.S. District Court for the District of Delaware
- Case Number: 1:25-cv-01187
- Filing Date: September 24, 2025
- Status/Outcome: The case was terminated on January 9, 2026, after ContactWave filed a Notice of Dismissal with Prejudice.
4. ContactWave LLC v. Kayak Software Corporation
- Jurisdiction: Not specified in available documents, but filed in September 2025.
- Case Number: Not specified in available documents.
- Filing Date: September 24, 2025
- Status/Outcome: ContactWave LLC voluntarily dismissed the case with prejudice on October 21, 2025, a mere 27 days after the initial filing. Each party agreed to bear its own legal costs.
No records of appeals to the Court of Appeals for the Federal Circuit (CAFC) for this specific patent have been identified. The consistent strategy of filing suits followed by dismissals with prejudice suggests that settlements were likely reached, or that Contactwave LLC chose not to proceed after an initial assessment of the defendants' responses.
Generated 5/12/2026, 9:46:56 PM