Driveshaft Patent Eligibility Has Full Fed. Circuit Bitterly Split

Law360 (July 31, 2020, 9:57 PM EDT) -- The full Federal Circuit decided Friday not to review a decision invalidating an American Axle driveshaft patent for claiming a natural law, as half the court said it simply applied precedent while the other half argued it sets confusing new law that one judge said will "lead to insanity."

The 6-6 vote on American Axle & Manufacturing Inc.'s petition for en banc rehearing means that the October panel decision stands because a majority of the court's judges did not vote to review it. Yet more than 100 pages of opinions filed by the judges exposed acrimonious divisions about patent eligibility....

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