In this patent infringement action, the Plaintiff moved to exclude the defendant’s expert, Mr. Carmichael, arguing that his testimony should be stricken because Mr. Carmichael “improperly opines on what he believes a PTO examiner would have done in a specific situation had he or she had additional information Carmichael had been provided.” In making its motion, the Plaintiff asserted that Mr. Carmichael’s report and testimony constitute “retroactive mind-reading of the thoughts of patent examiners.” Barry v. Medtronic, Inc., No. 1:14-cv-104, 2016 U.S. Dist. LEXIS 104118, *6-7 (E.D. Tex. July 19, 2016).
As an example, the Plaintiff pointed out that Mr. Carmichael intended to testify that the patent-in-suit would not have “issued as it did if the PTO had been aware of those prior installations and systems” and “if Mr. Squier had disclosed [information he allegedly withheld] the PTO would not have revived the patent and would have viewed the certification as unmistakably false.”
In response, Defendants contended that the Plaintiff mischaracterized Mr. Carmichael’s opinions, asserting that Mr. Carmichael’s report and testimony would assist the trier of fact in determining whether “from the perspective of a reasonable PTO examiner — the omitted information rises to the level of but-for materiality” and that Mr. “Carmichael’s opinion is not speculative but based upon his deep understanding of, and long experience with, PTO practice and procedure.”