In Billups-Rothenberg, Inc. v. Assoc’d Regional Univ. Pathologists, Inc., No. 2010-1401 (Fed. Cir. 4/29/2011), U.S. Patent Nos. 5,674,681 (the ’681 patent) and 6,355,425 (the ’425 patent) describe genetic tests for Type I hereditary hemochromatosis, an iron disorder characterized by excessive iron absorption by the body. The defective gene in hemochromatosis is the High Fe (“HFE”) gene. The …