In Garmin Int’l, Inc. v. Cuozzo Speed Tech. LLC, the Patent Trial and Appeal Board (Board) set forth fi ve factors—commonly referred to as the Garmin factors—for determining whether “additional discovery” will be granted to a party during a proceeding before the Board, such as an inter partes review, covered business method review, or post-grant review. In their article, Nelson D. Runkle and Tyler Del Rosario, of Sughrue Mion, PLLC, discuss the five factors and when to ask for additional discovery.