In this patent infringement action, the defendant, Faro Technologies (“Faro”), moved to exclude the plaintiff’s expert with respect to the expert’s opinion regarding the absence of acceptable non-infringing alternatives as a basis for lost profits. Faro moved to exclude on the basis that the plaintiff’s expert economist lacks the expertise to opine on Faro’s likely redesign to avoid infringing the patent-in-suit. The plaintiff’s expert relied on the expert report of another expert of plaintiff’, who specialized in computer science and electronics.
As the district court analyzed the motion, it explained that “‘[a]n expert may express and opinion that is based on facts that the expert assumes, but does not know, to be true. It is then up to the party who calls the expert to introduce other evidence establishing the facts assumed by the expert.’ Williams v. Illinois, No. 10-8505, 2012 WL 2202981, at *2 (U.S. June 18, 2012). To be sure, Faro challenges Hager’s technical analysis of the external box option. However, when ‘experts rely on conflicting sets of facts, it is not the role of the trial court to evaluate the correctness of facts, it is not the role of the trial court to evaluate the correctness of facts underlying one expert’s testimony.’ Micro Chem., Inc. v. Lextron, Inc., 317 F. 3d 1387, 1392 (Fed. Cir. 2003).”
Continue reading