Purdue Patents for Extended-Release OxyContin Nixed in Intas Win
Judge agrees with Intas’ Accord, cancels five Purdue patents ‘Existing monopoly’ fueled abuse-deterrent version’s success A federal judge voided five patents Purdue Pharma LP alleges are infringed by generic versions of extended-release OxyContin proposed by Intas Pharmaceuticals Ltd.’s Accord unit, finding they cover obvious inventions and shouldn’t have been issued.