On June 12, 2015, the Federal Circuit issued an opinion holding that claims directed to a method of detecting paternally inherited cell-free fetal DNA (“cffDNA”) in maternal plasma or serum are not patent eligible subject matter under 35 U.S.C. § 101. Ariosa Diagnostics, Inc. v. Sequenom, Inc., Nos. 2014-1139, 2014-1144 (June 12, 2015).