In one of the first Eastern District of Texas interpretations of the Hatch-Waxman Act, the federal law governing the procedure for bringing generic drugs to market, brand-name drug company Allergan Inc. has prevailed against five generic drug makers.

On Aug. 22 in Allergan Inc. v. Sandoz Inc ., U.S. District Judge T. John Ward ruled that the four Allergan patents were valid and that the four defendants in the consolidated case had infringed upon it.