PTAB Won't Review Chiesi Unit's 4 Hypertension Drug Patents

By Vin Gurrieri (April 24, 2015, 2:57 PM EDT) -- The Patent Trial and Appeal Board on Friday declined four separate bids by generic drug manufacturer Sandoz Inc. to review four patents owned by a Chiesi USA Inc. unit related to its intravenous high blood pressure drug Cardene because the generic manufacturer failed to show it was likely to prove the patents are invalid....

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