Thomson Reuters Enterprise Centre GmbH and West Publishing Corp. v. ROSS Intelligence Inc.
U.S. District Court for the District of Delaware; U.S. Court of Appeals for the Third Circuit · D. Del. 1:20-cv-00613-SB; 3d Cir. No. 25-2153 · filed 2020-05-06 · United States · Copyright and AI training
on-appealROSS Intelligence Inc.
Where it stands (2026-09-07): District-court summary judgment issued February 11, 2025; Third Circuit No. 25-2153 was argued June 11, 2026 and no opinion was found as of 2026-09-07.
ROSS, an AI legal-research startup, used Westlaw-derived legal Q&A materials to train a competing search tool. The district court found key Westlaw material protectable and rejected fair use; the interlocutory appeal is pending in the Third Circuit.
Next expected: Third Circuit opinion in No. 25-2153.
Milestones
Third Circuit heard argument in No. 25-2153; decision pending. · document
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