Founded in 1970, Barr Pharmaceuticals is an established pharmaceutical company engaged in developing, manufacturing and marketing generic and proprietary pharmaceuticals in specific therapeutic categories that generate sustainable profitability. Barr Pharmaceuticals' business strategy has three core components: developing and marketing proprietary pharmaceuticals, developing and marketing generic pharmaceuticals that have one or more barriers to entry and developing the generic version and then challenging patents protecting select brand pharmaceuticals where the Company believes that such patents are either invalid, unenforceable or not infringed by the Company's product.