IPNews® - Purdue Pharma LP filed a lawsuit in New York on Friday claiming that two generic drug manufacturers' planned generic versions of the “abuse-proof” form of OxyContin will infringe two patents licensed to the company.

Watson Pharmaceuticals Inc. and Impax Laboratories Inc. both sent letters to Purdue in December, informing the company of their plans to make a generic form of the drug.  Purdue asked the court for an injunction preventing the companies from making the generic versions of the painkiller, claiming the release of a generic form of the drug would cause irreparable harm to Purdue.

To continue reading, click: OxyContin Manufacturer Sues Generics Makers for Patent Infringement