December 06, 2013
Impax Laboratories Inc. has settled a suit alleging its proposed generic version of OxyContin infringed Purdue Pharma LP's patents for a tamper-resistant version of the painkiller, according to a consent judgment filed Friday in a suit that had been rolled into antitrust multidistrict litigation in New York federal court.
February 04, 2013
Purdue Pharma LP and Grunenthal GmbH on Friday sued two rivals in New York federal court, alleging their planned generic versions of painkiller OxyContin infringed two patents covering a so-called abuse-proof version of the drug.