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A Closer Look At Ariosa After Fed. Circ. Denies Rehearing

Law360, New York (December 11, 2015, 10:15 AM EST) -- William A. Carroll

Heidi Dare In Ariosa Diagnostics Inc. v. Sequenom Inc., a Federal Circuit panel held that certain prenatal diagnostic testing claims in U.S. patent no. 6,258,540 ("the '540 patent") were invalid under 35 U.S.C. § 101 as directed to a natural phenomenon.[1] The court's holding rested on its conclusion that the claims failed the "inventive concept" test of Mayo v. Prometheus.[2]

The Ariosa case raises a critical question of whether Mayo permits the interplay between a natural principle and the steps of a process claim to supply an inventive concept under § 101, or whether the inventive concept must reside...

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