Lionra Technologies Limited v. Fortinet, Inc.

District Court, E.D. Texas·Decided May 16, 2024·No. 2:22-cv-00322·Unknown

Opinion

IN THE UNITED STATES DISTRICT COURT FOR THE EASTERN DISTRICT OF TEXAS MARSHALL DIVISION

LIONRA TECHNOLOGIES LIMITED, § § Plaintiff, § v. § CIVIL ACTION NO. 2:22-cv-00322-JRG-RSP § (LEAD CASE) FORTINET, INC., § § Defendant. § MEMORANDUM ORDER

Before the Court is Palo Alto Networks, Inc.’s Motion to Exclude to Exclude Portions of Jim W. Bergman’s Opinions Regarding Damages (Dkt. No. 278). After consideration, the Court DENIES the motion as provided below. I. APPLICABLE LAW An expert witness may provide opinion testimony 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. Rule 702 requires a district court to make a preliminary determination, when requested, as to whether the requirements of the rule are satisfied with regard to a particular expert’s proposed testimony. See Kumho Tire Co. v. Carmichael, 526 U.S. 137, 149 (1999); Daubert v. Merrell Dow Pharm., Inc., 509 U.S. 579, 592-93 (1993). District courts are accorded broad discretion in making Rule 702 determinations of admissibility. Kumho Tire, 526 U.S. at 152 (“the trial judge must have considerable leeway in deciding in a particular case how to go about determining whether particular expert testimony is reliable”). Although the Fifth Circuit and other courts have identified various factors that the district court may consider in determining whether an expert’s testimony should be admitted, the nature of the factors that are appropriate for the court to consider is dictated by the ultimate inquiry—whether the expert’s testimony is sufficiently reliable and relevant to be helpful to the finder of fact and thus to warrant admission at trial. United States v. Valencia, 600

F.3d 389, 424 (5th Cir. 2010). Importantly, in a jury trial setting, the Court’s role under Daubert is not to weigh the expert testimony to the point of supplanting the jury’s fact-finding role; instead, the Court’s role is limited to that of a gatekeeper, ensuring that the evidence in dispute is at least sufficiently reliable and relevant to the issue before the jury that it is appropriate for the jury’s consideration. See Micro Chem., Inc. v. Lextron, Inc., 317 F.3d 1387, 1391-92 (Fed. Cir. 2003) (applying Fifth Circuit law) (“When, as here, the parties’ experts rely on conflicting sets of facts, it is not the role of the trial court to evaluate the correctness of facts underlying one expert’s testimony.”); Pipitone v. Biomatrix, Inc., 288 F.3d 239, 249-50 (5th Cir. 2002) (“‘[t]he trial court’s role as gatekeeper [under Daubert] is not intended to serve as a replacement for the adversary system.’ . . . Thus, while

exercising its role as a gate-keeper, a trial court must take care not to transform a Daubert hearing into a trial on the merits,” quoting Fed. R. Evid. 702 advisory committee note). As the Supreme Court explained in Daubert, 509 U.S. at 596, “Vigorous 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.” See Mathis v. Exxon Corp., 302 F.3d 448, 461 (5th Cir. 2002). II. ANALYSIS A. “ENCRYPTED THROUGHPUT EFFICIENCY” PAN argues that Dr. Smith’s and Mr. Bergman’s damages opinions rely on the difference in “encrypted throughput efficiency” between the Accused PAN Products and alleged non- infringing alternatives inappropriately. (Mot. at 4-10.) First, PAN argues that the “encrypted throughput efficiency” is different from the accused technology, creating a misalignment in damages. (Id. at 4-7.) In sum, PAN contends that because “(1) the inventors did not invent encrypted throughput efficiency; (2) the claimed technology

improves throughput generally but does not necessarily affect encrypted throughput efficiency; and (3) other factors unrelated to the claimed technology and unanalyzed by Dr. Smith might also affect encrypted throughput efficiency,” it should not be considered. (Id. at 6.) Second, PAN argues it is not the “encrypted throughput efficiency” that drives demand but threat prevention. (Id. at 7-8.) PAN contends Mr. Bergman testified that it is threat prevention that drives sales but threat prevention is broader than encrypted throughput. (Id.) PAN argues “[i]solating encrypted throughput efficiency and attaching some value to it does not tell the fact- finder anything at all about the claimed invention, and it does not tell the factfinder anything at all about economic demand for the accused products.” (Id. at 8.) Third, PAN complains that no Lionra expert has analyzed the difference between the

accused products and non-infringing alternatives to determine if it is the asserted patent that accounts for their differences. (Id. at 9-10.) PAN points to a lack of analysis that the alleged non- infringing alternatives are not infringing. (Id.) In all, PAN contends this issue is comparable to that faced in Apple v. Wi-LAN. (Id. at 10- 11.) PAN contends that just as in Apple, Lionra uses encrypted throughput efficiency as a starting point despite not having invented such and despite the patented technology driving raw throughput instead. (Id. at 11.) Lionra responds to each point in turn. First, Lionra contends its non-infringing alternative analysis properly apportions value to the patented technology. (Opp. at 2-6.) Lionra contends the difference in value expressed as increased performance, profits, or market share between the accused devices and non-infringing alternatives apportions the value of the asserted patent. (Id. at 4.) Lionra contends it need not have invented “encrypted throughput efficiency” when its invention contributes to its improvement. (Id. at 4-5.) Lionra further contends that elimination of the value

of all conventional elements is not required when the invention is a novel combination of conventional elements as here. (Id. at 6.) Second, Lionra argues encryption throughput efficiency is relevant here because when analyzed as Mr. Bergman has, it appropriately relates to threat prevention. (Id. at 7-8.) Lionra contends Mr. Bergman’s regression analysis appropriately analyzes the relationship between the raw input, encryption throughput efficiency, and the consumer concern, threat prevention. (Id. at 8.) Third, Lionra contends that Dr. Smith properly analyzed the non-infringing alternatives referencing its opposition to PAN’s Daubert motion against Dr. Smith. (Id. at 8-9.) Last, Lionra contends Apple v. Wi-LAN is unlike this case. (Id. at 9-10.) Lionra contends

Apple did not address the issue of a novel arrangement of known components. (Id.) Further, Lionra contends there is no “much broader statement about the value of the patented technology” upon which Apple relied. (Id.) The Court agrees with Lionra. While it is clear that the patented invention is not “encrypted throughput efficiency,” Lionra has put forth credible evidence in the form of testimony from both Dr.

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Lionra Technologies Limited v. Fortinet, Inc., (E.D. Tex. 2024).

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