Legaltechmonitor iconLegaltechmonitorSep 30, 2026

Third Circuit Backs Thomson Reuters in Pivotal AI Copyright Fight With Ross

The Third Circuit has delivered one of the most important appellate rulings yet at the intersection of copyright law, legal publishing, and artificial intelligence. In affirming Thomson Reuters' win against Ross Intelligence, the court left in place a ruling that Ross infringed Westlaw headnotes and could not shield its conduct under fair use.

Third Circuit Backs Thomson Reuters in Pivotal AI Copyright Fight With Ross

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The Third Circuit has delivered one of the most important appellate rulings yet at the intersection of copyright law, legal publishing, and artificial intelligence.

In affirming Thomson Reuters' win against Ross Intelligence, the court left in place a ruling that Ross infringed Westlaw headnotes and could not shield its conduct under fair use.

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The Third Circuit has delivered one of the most important appellate rulings yet at the intersection of copyright law, legal publishing, and artificial intelligence. In affirming Thomson Reuters' win against Ross Intelligence, the court left in place a ruling that Ross infringed Westlaw headnotes and could not shield its conduct under fair use.

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