Fed. Circ. Panel Backs Invalidation Of OxyContin Patent

By Theresa Schliep ( June 8, 2026, 7:17 PM EDT) -- The Federal Circuit on Monday upheld a Delaware federal court's decision that deemed invalid a Purdue Pharma patent covering an abuse-deterrent version of the opioid OxyContin, rebuffing the company's arguments that the lower court got its obviousness analysis wrong....

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