IP lawsuits in U.S. District Court, Southern District of California

Federal patent, copyright, and trademark lawsuits filed in U.S. District Court, Southern District of California, tracked by IP Feed — newest first, each with an AI summary and the Coverage-vs-Reality meter.

  1. ClosedPatentS.D. Cal.2026-07-20
    Taction Technology, Inc. v. Apple Inc.

    Taction Technology sues Apple for allegedly infringing its patents in Apple products or services.

  2. ClosedCopyrightS.D. Cal.2026-07-07
    Powers v. Disney/The Walt Disney Corporation

    Christin Noel Powers sues Disney and multiple filmmakers for copyright infringement related to an animated film.

  3. ActivePatentS.D. Cal.2026-06-30
    Smith Interface Technologies, LLC v. Apple Inc.

    Smith Interface Technologies sues Apple for infringing its patents in Apple products or services.

  4. ActivePatentS.D. Cal.2026-05-22
    Rich Media Club, LLC v. MediaNews Group, Inc.

    Rich Media Club sues MediaNews Group for allegedly infringing its patent technology.

  5. ActivePatentS.D. Cal.2026-04-16
    Platform Science, Inc. v. Fleet Connect Solutions, LLC

    Platform Science sues Fleet Connect Solutions for infringing its patents.

  6. ActivePatentS.D. Cal.2026-04-03
    Ameranth, Inc. v. Brink Software, Inc.

    Ameranth sues Brink Software for patent infringement over software technology.

  7. ClosedTrademarkS.D. Cal.2025-06-03
    Insurance King Agency, Inc. v. Digital Media Solutions, LLC

    Insurance King Agency sues Digital Media Solutions and Underground Elephant for trademark infringement under the Lanham Act.

  8. DormantTrademarkS.D. Cal.2023-03-21
    Weldental LLC v. Leonesio

    Weldental LLC sues Max Leonesio and related entities for trademark infringement under the Lanham Act.

  9. DormantTrademarkS.D. Cal.2022-11-14
    Brooks Entertainment, Inc. v. Activision Blizzard, Inc.

    Brooks Entertainment sues Activision Blizzard and Rockstar Games for trademark infringement under the Lanham Act.

  10. ClosedPatentS.D. Cal.2020-10-26
    Bell Northern Research, LLC v. Coolpad Technologies, Inc.

    Bell Northern Research sues Coolpad, Kyocera, Broadcom, and Yulong for infringing its patents.