Patent 6963505

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)

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Specific litigation cases in our database that name US patent 6963505. 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 of April 26, 2026, a review of federal court dockets and patent litigation databases confirms that U.S. Patent 6,963,505 has been asserted in at least two related federal cases.

The information is primarily sourced from court filings associated with the cases, which reference the '505 patent directly.

Known Litigation Summary:

Case 1

  • Case Number: 5:25-cv-02389
  • Jurisdiction: U.S. District Court for the Northern District of California
  • Filing Date: March 7, 2025.
  • Plaintiff(s): SanDisk Corporation.
  • Defendant(s): IPValue Management, Inc. and Longitude Flash Memory Solutions, Ltd.
  • Counterclaim-Plaintiff(s): IPValue Management, Inc. and Longitude Flash Memory Solutions, Ltd.
  • Counterclaim-Defendant(s): SanDisk Corporation and Western Digital Corporation.
  • Status/Outcome:
    • This case was initiated by SanDisk seeking a declaration of non-infringement for five patents, including U.S. Patent 6,963,505.
    • IPValue and Longitude Flash Memory Solutions filed a counterclaim for infringement of the '505 patent against SanDisk and Western Digital.
    • On October 7, 2025, the court denied a motion filed by SanDisk and Western Digital to dismiss the infringement counterclaim concerning the '505 patent.
    • A court filing dated September 29, 2025, indicates that the parties agreed to a temporary stay of technical discovery related to the '505 patent until the motion to dismiss was resolved.
    • The case appears to be ongoing.

Case 2

  • Case Number: 8:25-cv-00119
  • Jurisdiction: U.S. District Court for the Central District of California
  • Filing Date: January 22, 2025.
  • Plaintiff(s): IPValue Management, Inc., et al.
  • Defendant(s): Western Digital Corporation, et al.
  • Status/Outcome:
    • This case is a related matter to the Northern District of California action.
    • Court records indicate it is an action for patent infringement.
    • The specific patents asserted, including whether the '505 patent is at issue, are confirmed by PTAB filings that list this case as a related matter.
    • The case appears to be ongoing.

These two cases represent the known litigation involving U.S. Patent 6,963,505. No other litigation was identified in PACER, CAFC dockets, or other common patent litigation databases.

Generated 5/13/2026, 12:16:33 AM