Mealey's (April 13, 2018, 9:34 AM EDT) -- WASHINGTON, D.C. — A Delaware federal judge’s construction of “signal interface” as inclusive of an implicit positional limitation was erroneous, a patent owner tells the Federal Circuit U.S. Court of Appeals in a recent brief (United Access Technologies LLC v. AT&T Corporation, et al., Nos. 2017-2614, -2615, -2616, 2018-1030, -1031, -1032, Fed. Cir.)....