Patent 7952645

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.

1 active
  • IPR2025-01312IPRfiled Aug 29, 2025vs. Samsung Electronics Co. Ltd. et al.Trial Instituted

Cached for 24 hours. Status strings are sourced verbatim from the PTAB API; the colored badge is our heuristic classification.

Cases on file (4)

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Specific litigation cases in our database that name US patent 7952645. 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

US Patent 7952645 is currently involved in the following known litigation:

  1. PTAB Case IPR2025-01312

    • Plaintiff(s): [[Samsung Electronics Co.](/litigations/by-defendant/Samsung%20Electronics%20Co.) Ltd.](/litigations/by-plaintiff/Samsung%20Electronics%20Co.%20Ltd.) et al.
    • Defendant(s): Maxell, Ltd.
    • Jurisdiction: Patent Trial and Appeal Board (PTAB)
    • Case Number: IPR2025-01312
    • Filing Date: August 28, 2025
    • Current Status: Pending - Instituted.

  2. District Court Case (Texas Western District Court)

    • Plaintiff(s): Maxell, Ltd.
    • Defendant(s): Lenovo Group Ltd., Lenovo (United States) Inc., and Motorola Mobility LLC
    • Jurisdiction: U.S. District Court for the Western District of Texas
    • Case Number: 6:21-cv-01169
    • Filing Date: The case was filed prior to January 10, 2022, when a motion for alternative service was filed.
    • Current Status: Active. The case involves allegations of infringement on eight patents, and a motion for alternative service was granted on February 15, 2022.

  3. District Court Case (Illinois Northern District Court)

    • Plaintiff(s): Motorola Mobility LLC
    • Defendant(s): Maxell, Ltd.
    • Jurisdiction: U.S. District Court for the Northern District of Illinois
    • Case Number: 1:22-cv-00256
    • Filing Date: January 14, 2022
    • Current Status: Active. This case is a declaratory judgment action and was identified as a related lawsuit in a June 2023 document concerning another IPR.

  4. District Court Case (Texas Eastern District Court)

    • Plaintiff(s): Maxell, Ltd.
    • Defendant(s): Samsung Electronics Co., Ltd.
    • Jurisdiction: U.S. District Court for the Eastern District of Texas
    • Case Number: 5:25-cv-00052-RWS
    • Filing Date: April 21, 2025
    • Current Status: Active. A Markman Hearing is scheduled for May 6, 2026, and a Pretrial Conference is set for August 10, 2027. Although a $112M verdict from May 2025 was overturned in November 2025, the case remains active with ongoing proceedings.

Generated 5/22/2026, 6:48:22 PM