In limited circumstances, a court may overlook what was obviously a mistaken characterization of the invention by Applicant during prosecution. This is appropriate, however, only when the error is so apparent that a reasonable person reading the prosecution history would not be misled. See Biotec Biologische Naturverpackungen GmbH v. Biocorp, Inc. 249 F.3d 1341, 1348 (Fed. Cir. 2001); Intervet America, Inc. v. Kee-Vet Labs., Inc., 887 F.2d 1050, 1053-1054 (Fed. Cir. 1989).