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Fed. Circ. Affirms PTAB Ax Of Cialis, Adcirca Patents

By Kevin Penton ( April 18, 2018, 9:23 PM EDT) -- The Federal Circuit on Wednesday affirmed two Patent Trial and Appeal Board inter partes review decisions that the asserted claims of patents owned by an Eli Lilly subsidiary covering the erectile dysfunction drug Cialis and pulmonary arterial hypertension drug Adcirca are invalid as obvious....

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