Interesting precedential decision this morning regarding induced infringement of surgical devices ("[S]urgical techniques and
tools for treating spinal deformities, such as scoliosis, that cause vertebrae, which are the small bones forming the
backbone, to twist out of alignment") and expert testimony.
Below, following the experts' examination during trial, defendant renewed its motions to exclude their testimony and the DCT agreed ("Dr. Yassir’s testimony with respect to whether the Accused Tools contained the required
“handle means” was inadmissible because it “varied from
and contradicted” the court’s construction of “handle means,” thereby rendering it improper and unhelpful to the
jury as the trier of fact . . . Dr. Neal’s survey methodology and results did not meet the standards of reliability required under Daubert, Federal Rule of Evidence 702(a), and Federal
Rule of Evidence 403."). Absent the expert's evidence, the infringement contentions fell out, and so the DCT likewise granted JMOL. Here, while acknowledging that "[e]xpert opinion that
contradicts the court’s claim construction is not helpful to
the jury and, hence, should be excluded as unreliable under
Rule 702(a)." Here, however, the CAFC majority does not agree that "Dr. Yassir’s testimony . . . [contradicted] the court’s claim construction" ("It was, instead, an application of that construction that a reasonable
factfinder could have either accepted as persuasive or rejected as implausible"). Importantly, "DePuy did not object to any portion of Yassir’s direct
examination as contradictory of the court’s construction or
inadmissible" despite an in limine inadmissibility ruling to that effect.
Judge Prost dissents, however, believing that the testimony was unreliable and that CAFC should defer to the district court's gatekeeping function, particularly post-EcoFactor ("We just recently convened en banc to reassert the “essential prerequisite” of a court’s reliability determination for expert testimony to be considered by a jury. See EcoFactor, Inc. v. Google LLC . . . the majority not only legally errs, it also makes no genuine attempt to explain how the district court abused its discretion in finding a contradiction of its claim construction.").
A contentious issue that will likely raise its head again and again in many different contexts.