Zeroclick, LLC v. Apple Inc., --- F.3d ----, 2018 WL 2450496 (Fed. Cir. June 1, 2018) marks a significant step toward a more balanced § 112(f) jurisprudence. It is the first post-Williamson Federal Circuit opinion to push back against the expansion of § 112(f), and it does so in a doctrinally coherent fashion that provides useful guidance to district courts and to future Federal Circuit panels.