Purdue Sues KV Over OxyContin Patent

Law360 (June 11, 2007, 12:00 AM EDT) -- Less than two weeks after a Manhattan court entered a consent judgment that marked an end to a patent infringement battle over the painkiller OxyContin, OxyContin maker Purdue Pharma LP has filed a new lawsuit against KV Pharmaceutical Co. asserting three patents covering controlled-release oxycodone.

Wednesday, Purdue Pharma LP filed suit against KV Pharmaceutical in the U.S. District Court for the Southern District of New York, the same court in which Judge Sidney Stein approved a deal which resolved a long-running legal battle between Purdue Pharma...
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