Goodwin partner Robert Frederickson and associate Jordan Bock write for World IP Review that expectations were high before the Federal Circuit’s March 13, 2025 en banc argument in EcoFactor v Google. It has been nearly a decade since the Federal Circuit issued an en banc decision addressing substantive district-court litigation practice involving utility patents, instead tackling issues relating to inter partes review practice, appellate procedure, and design patents. In EcoFactor, however, the full court was poised to reshape a frequent battle ground in patent cases: how to evaluate the reliability of expert testimony on damages under Federal Rule of Evidence 702. Not surprisingly, then, the case attracted significant attention, including a flood of amicus briefs from the likes of Dell, Intel, Apple, Cisco, Garmin, Red Hat, Tesla, SAP America, SAS Institute, Symmetry, VIZIO, and Uber.