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Lexos Media IP, LLC v. Overstock.Com, Inc.

  1. February 03, 2026

    4 Attys Sanctioned Over AI Hallucinations In Legal Brief

    A Kansas federal judge has issued sanctions against a group of lawyers representing a technology company in a patent dispute and has referred one attorney for disciplinary action over case citations hallucinated by ChatGPT appearing in a legal brief.

  2. January 06, 2026

    Atty Apologizes For ChatGPT-Hallucinated Citations In Briefs

    A patent attorney has apologized to a Kansas federal judge for submitting a court filing with case citations hallucinated by ChatGPT, calling the experience "shameful and embarrassing" and saying he was in a poor mental state at the time due to his mother and aunt being hospitalized and dying shortly after.

  3. December 16, 2025

    Patent Attys Ordered To Explain AI-Hallucinated Citations

    A Kansas federal judge ordered the attorneys representing patent licensing company Lexos Media IP in its infringement suit against Overstock.com Inc. to explain why they shouldn't be sanctioned for submitting briefs that contained nonexistent and incorrect legal citations hallucinated by generative artificial intelligence.