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Ross Intelligence out of options in US copyright fight with Thomson Reuters

By Melissa Ritti ( February 11, 2025, 22:31 GMT | Comment) -- Thomson Reuters has partly prevailed on summary judgment in its infringement case against Ross Intelligence over copyrights associated with the Westlaw database. A side-by-side comparison of the works — which US Circuit Judge Stephanos Bibas called for at a hearing in December — led to today’s outcome, with Bibas saying he “slogged through all 2,830 headnotes,” ultimately finding 2,243 of them infringed by Ross. While the question of infringement of thousands of other headnotes remains undecided, the defendant has little ammunition left in its arsenal: In the same ruling, Bibas stripped Ross of its ability to argue at trial that its use of Westlaw qualifies as fair.Ross Intelligence, maker of an AI-powered legal research tool, cannot evade liability for infringing the copyrighted headnotes associated with Thomson Reuters’ Westlaw database, US Circuit Judge Stephanos Bibas ruled today....

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