Fed. Circ. Affirms Ruling Axing 4 Purdue OxyContin Patents

By Ryan Davis (February 1, 2016, 8:29 PM EST) -- The Federal Circuit on Monday affirmed a lower court's decision that four patents on Purdue Pharma LP's painkiller OxyContin are invalid as anticipated or obvious in a win for four generics makers planning their own version of the drug....

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