TQ Delta LLC v. 2Wire Inc.

District Court, D. Delaware·Decided July 14, 2021·No. 1:13-cv-01835·Unknown

Opinion

IN THE UNITED STATES DISTRICT COURT FOR THE DISTRICT OF DELAWARE

TQ DELTA, LLC, Plaintiff; v. Civil Action No. 13-1835-RGA □ 2WIRE, INC., Defendant.

MEMORANDUM OPINION

Brian E. Farnan, Michael J. Farnan, FARNAN LLP, Wilmington, DE; Peter J. McAndrews, Paul W. McAndrews, Rajendra A. Chiplunkar, Ashley M. Ratyez, MCANDREWS, HELD & MALLOY, LTD., Chicago, IL, Attorneys for Plaintiff. . Jody C. Barillare, MORGAN LEWIS & BOCKIUS LLP, Wilmington, DE; Brett Schuman, □ Rachel M. Walsh, GOODWIN PROCTER LLP, San Francisco, CA; Douglas J. Kline, GOODWIN PROCTER LLP, Boston, MA; Andrew S. Ong, GOODWIN PROCTER LLP, Redwood City, CA; Cindy Chang, GOODWIN PROCTER LLP, New York, NY, Attorneys for Defendant.

July 14, 2021

/s/ Richard G. Andrews ANDREWS, U.S. DISTRICT JUDGE: Before the Court is Defendant’s motion to exclude the expert testimony of Dr. Madisetti for Family 4. (D.I. 1466). I have considered the parties’ briefing. (D.I. 1467, 1516, 1527). BACKGROUND Plaintiff TQ Delta filed suit against Defendant 2 Wire alleging infringement of twenty- four patents that span six different patent families. (D.I. 6). The Court divided the case into separate trials based on the patent families. (D.I. 280). This motion concerns the Family 4 Patents, U.S. Patent Nos. 7,292,627 (“the ’627 Patent”), 8,090,008 (“the ’008 Patent”), and 8,073,041 (“the 041 Patent”). Plaintiff alleges infringement of Claim 26 of the ’627 Patent, Claim 14 of the ’008 Patent, and Claim 14 of the 041 Patent. The patents-at-issue are directed to a system and method for scrambling the phase characteristics of carrier signals. Ti LEGAL STANDARD Federal Rule of Evidence 702 sets out the requirements for expert witness testimony and states: A witness who is qualified as an expert by knowledge, skill, experience, training, or education may testify in the form of an opinion or otherwise if: (a) the expert’s scientific, technical, or other specialized knowledge will help the trier of fact to understand the evidence or to determine a fact in issue; (b) the testimony is based on sufficient facts or data; (c) the testimony is the product of reliable principles and methods; and (d) the expert has reliably applied the principles and methods to the facts of the case. Fed. R. Evid. 702. The trial court has the “task of ensuring that an expert’s testimony both rests on a reliable foundation and is relevant to the task at hand.” Daubert v. Merrell Dow Pharms. Inc., 509 U.S. 579, 597 (1993). The Third Circuit has explained:

Rule 702 embodies a trilogy of restrictions on expert testimony: qualification, reliability and fit. Qualification refers to the requirement that the witness possess specialized expertise. We have □ interpreted this requirement liberally, holding that “‘a broad range of knowledge, skills, and training qualify an expert.” Secondly, the testimony must be reliable; it “must be based on the ‘methods and procedures of science’ rather than on ‘subjective belief or unsupported speculation’; the expert must have ‘good grounds’ for his o[r] her belief. In sum, Daubert holds that an inquiry into the reliability of scientific evidence under Rule 702 requires a determination as to its scientific validity.” Finally, Rule 702 requires that the expert testimony must fit the issues in the case. In - other words, the expert’s testimony must be relevant for the purposes of the case and must assist the trier of fact. The Supreme Court explained in Daubert that “Rule 702’s ‘helpfulness’ standard requires a valid scientific connection to the pertinent inquiry as a precondition to admissibility.” By means of a so-called “Daubert hearing,” the district court acts as a gatekeeper, preventing opinion testimony that does not meet the requirements of qualification, reliability and fit from reaching the jury. □ Schneider ex rel. Estate of Schneider v. Fried, 320 F.3d 396, 404-05 (3d Cir. 2003) (footnote and internal citations omitted).! At base, “the question of whether the expert is credible or the opinion is correct is generally a question for the fact finder, not the court.” Summit 6, LIC v. Samsung Elecs. Co., Ltd., 802 F.3d 1283, 1296 (Fed. Cir. 2015). Indeed, “[v]igorous cross- examination, presentation of contrary evidence, and careful instruction on the burden of proof are the traditional and appropriate means of attacking shaky but admissible evidence.” Daubert, 509 US. at 596. ' Il. ANALYSIS Defendant moves to exclude the testimony of Plaintiff's expert Dr. Vijay Madisetti for Family 4. Defendant takes issue with Dr. Madisetti’s testimony on two grounds.

‘The Court of Appeals wrote under an earlier version of Rule 702, but the subsequent amendments to it were not intended to make any substantive change.

□ First, Defendant argues that Dr. Madisetti’s opinions should be excluded because his “deliberate evasiveness” at deposition shows that his opinions are unreliable. (D.1. 1467 at □□□□ Defendant states “Dr. Madisetti consciously evaded 2 Wire’s legitimate and targeted questions and otherwise obfuscated his testimony.” (/d. at 3). Defendant maintains that Dr. Madisetti “delayed and disrupted the testimonial record,” as he “gave non-responsive testimony to 2Wire’s questioning” and “continuously misstated and mischaracterized the targeted and simple questions.” (id. at 6). Defendant contends that Dr. Madisetti’s “intentional obfuscation” at his deposition demonstrates his “refusal. . to submit to a proper cross examination at deposition which would unfairly prejudice 2 Wire at trial” if Dr. Madisetti testifies. 7d. at 11-12). Defendant asserts that the Pennypack factors weigh in favor of exclusion of Dr. Madisetti’s opinions. (/d. at 12). It contends: (1) it is “severely prejudiced” by Dr. Madisetti’s conduct at his deposition; (2) there is no way to cure this prejudice with expert discovery closed and trial approaching; (3) Dr. Madisetti’s testimony would disrupt the order and efficiency of trial; (4) Plaintiffs actions demonstrate bad faith; and (5) Dr. Madisetti’s opinions are unhelpful to the trier of fact. (Id. at 15). Second, Defendant argues that Dr. Madisetti’s opinions should be excluded as not helpful to the trier of fact because Dr. Madisetti “refused to provide answers to relatively simple questions regarding the basis of his opinions and the materials cited in his reports.” (/d. at 15- 16). Defendant concludes, “2Wire and the Court are left with little guidance as to what Dr. Madisetti’s opinions are[] and what his testimony at trial will be.” U/d. at 17) Plaintiff counters that Dr. Madisetti’s testimony was not evasive or incomplete, and that Defendant mischaracterizes the factual record. (D.I. 1516 at 3-8). Plaintiff maintains that it is Defendant’s fault that it was unable to elicit certain information from Dr. Madisetti during his

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TQ Delta LLC v. 2Wire Inc., (D. Del. 2021).

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