On 2/13/2008, the Commission filed a complaint in federal district court charging Cephalon, Inc. with preventing competition to its branded drug Provigil. The conduct under challenge includes paying four firms to refrain from selling generic versions of Provigil until 2012. Cephalon’s anticompetitive scheme, according to the Commission, denies patients access to lower-cost, generic versions of Provigil and forces consumers and other purchasers to pay hundreds of millions of dollars a year more for Provigil. According to the complaint, Cephalon entered into agreements with four generic drug manufacturers that each planned to sell a generic version of Provigil. Each of these companies had challenged the only remaining patent covering Provigil, one relating to the size of particles used in the product. The complaint charges that Cephalon was able to induce each of the generic companies to abandon its patent challenge and agree to refrain from selling a generic version of Provigil until 2012 by agreeing to pay the companies a total amount in excess of $200 million. In so doing, Cephalon achieved a result that assertion of its patent rights alone could not.