US Patent 8142811 Controlled release hydrocodone formulations
Patent 8142811 was granted and assigned to Purdue Pharma on March, 2012 by the United States Patent and Trademark Office.
Is a
Current Assignee
Date Filed
February 17, 2009
Date of Patent
March 27, 2012
Patent Application Number
12378586
Patent Citations Received
Patent Jurisdiction
Patent Number
Patent Primary Examiner
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