Lighting Defense Group LLC v. Shanghai Sansi Electronic Engineering Company Limited

District Court, D. Arizona·Decided November 20, 2024·No. 2:22-cv-01476·Unknown

Opinion

1 WO 2 3 4 5 6 IN THE UNITED STATES DISTRICT COURT 7 FOR THE DISTRICT OF ARIZONA

9 Lighting Defense Group LLC, No. CV-22-01476-PHX-SMB Consolidated with: CV-22-01671-PHX- 10 Plaintiff, SMB

11 v. ORDER

12 Shanghai Sansi Electronic Engineering Company Limited, et al., 13 Defendants. 14 SANSI LED Lighting Inc., and SANSI 15 Smart Lighting Inc.,

16 Plaintiffs/Counter- Defendants, 17 v. 18 Lighting Defense Group LLC, 19 Defendant/Counter- 20 Plaintiff.

22 Pending before the Court is Defendants SANSI LED Lighting Incorporated, SANSI 23 Smart Lighting Incorporated, Shanghai SANSI Electronic Engineering Company 24 Limited’s (collectively, “SANSI”) Motion to Exclude the Testimony of Expert Thomas P. 25 McGahee (Doc. 91). Plaintiff Lightning Defense Group LLC (“LDG”) filed a response 26 (Doc. 120), to which SANSI replied (Doc. 130). LDG requested oral argument (Doc. 120 27 at 1), which was scheduled for November 15, 2024, but the Court vacated oral argument, 28 finding it unnecessary (Doc. 143). See LRCiv. 7.2(f). The Court will grant SANSI’s 1 Motion for the following reasons. 2 I. FACTUAL BACKGROUND 3 This Motion stems from LDG’s allegations that SANSI infringed upon four of its 4 patents (the “patents-in-suit”) beginning in 2017. (Doc. 18.) The patents-in-suit relate to 5 heat management technology for high efficiency lighting products, including those for light 6 emitting diodes (also known as LEDs). (Id. at 2 ¶¶ 1–2.) The technology facilitates heat 7 dispersion, resulting in LED products that are longer lasting, more efficient, and higher 8 powered. (Id.) LDG alleges that SANSI made, imported, distributed, and sold infringing 9 lighting products through its domestic affiliates, online, and through various retailers. (Id. 10 at 7–14.) LDG seeks adequate compensation of at least a “reasonable royalty” under 35 11 U.S.C. § 284 for the alleged infringement. (Id. at 17–21.) LDG offers its damages expert 12 Dr. Thomas P. McGahee’s (“Dr. McGahee”) opinion on how to calculate the reasonable 13 royalty. Dr. McGahee opined that under a hypothetical negotiation, the parties would have 14 agreed to running per-unit royalty license for the infringing products sold, imported, and 15 inventoried during the period of infringement. (Id. at 25–58.) 16 SANSI now moves to exclude Dr. McGahee’s expert testimony as untethered from 17 the facts of this case, methodologically flawed, and unreliable. (Doc. 91.) 18 II. LEGAL STANDARD 19 Federal Rules of Evidence 702 and 703, along with Daubert v. Merrell Dow 20 Pharmaceuticals, Inc., 509 U.S. 579 (1993) and its progeny, provide the legal framework 21 for the admissibility of expert testimony.1 See Apple Inc. v. Motorola, Inc., 757 F.3d 1286, 22 1315 (Fed. Cir. 2014), overruled on other grounds by Williamson v. Citrix Online, LLC, 23 792 F.3d 1339 (Fed. Cir. 2015). Rule 702 allows expert testimony if it is “more likely than 24 not” that: (a) “the expert’s scientific, technical, or other specialized knowledge will help 25 the trier of fact to understand the evidence or to determine a fact in issue;” (b) “the 26 1 The Court’s decision to admit expert testimony in a patent infringement case follows the 27 law of the regional circuit. GoDaddy.com LLC v. RPost Commc’ns Ltd., No. CV-14-00126-PHX-JAT, 2016 WL 2643003, at *2 (D. Ariz. May 10, 2016), aff’d, 685 F. 28 App’x 992 (Fed. Cir. 2017) (citing Micro Chem., Inc. v. Lextron, Inc., 317 F.3d 1387, 1390–91 (Fed. Cir. 2003)). 1 testimony is based upon sufficient facts or data;” (c) “the testimony is the product of 2 reliable principles and methods”; and (d) “the expert’s opinion reflects a reliable 3 application of the principles and methods to the facts of the case.” Rule 703 states: 4 An expert may base an opinion on facts or data in the case that the expert has 5 been made aware of or personally observed. If experts in the particular field would reasonably rely on those kinds of facts or data in forming an opinion 6 on the subject, they need not be admissible for the opinion to be admitted. 7 But if the facts or data would otherwise be inadmissible, the proponent of the opinion may disclose them to the jury only if their probative value in helping 8 the jury evaluate the opinion substantially outweighs their prejudicial effect. 9 Under Daubert, the Court’s focus “must be solely on principles and methodology, not on 10 the conclusion that they generate.” 509 U.S. at 595. “This entails a preliminary assessment 11 of whether the reasoning or methodology underlying the testimony is scientifically valid 12 and of whether that reasoning or methodology properly can be applied to the facts in issue.” 13 Id. at 592. 14 The Daubert standard applies to not only “scientific” testimony but also expert 15 testimony. Kumho Tire Co. v. Carmichael, 526 U.S. 137, 147–149 (1999). Admissibility 16 is preconditioned on a valid connection to the pertinent inquiry. Id. at 149. Where an 17 expert’s “testimony’s factual basis, data, principles, methods, or their application are called 18 sufficiently into question . . . the trial judge must determine whether the testimony has ‘a 19 reliable basis in the knowledge and experience of [the relevant] discipline.’” Id. (alteration 20 in original) (quoting Daubert, 509 U.S. at 592). The inquiry is a “flexible one.” Daubert, 21 509 U.S. at 594; see also Primiano v. Cook, 598 F.3d 558, 564 (9th Cir. 2010) (“Shaky but 22 admissible evidence is to be attacked by cross examination, contrary evidence, and 23 attention to the burden of proof, not exclusion.”). “Basically, the judge is supposed to 24 screen the jury from unreliable nonsense opinions, but not exclude opinions merely because 25 they are impeachable.” Alaska Rent-A-Car, Inc. v. Avis Budget Grp., Inc., 738 F.3d 960, 26 969–70 (9th Cir. 2013) (“The district court is not tasked with deciding whether the expert 27 is right or wrong, just whether his testimony has substance such that it would be helpful to 28 a jury.”). In this gatekeeping function, the Court’s inquiry remains tied to the facts of a 1 particular case. Kumho Tire, 526 U.S. at 151 (citing Daubert, 509 U.S. at 591). 2 “Under these rules, a district court may exclude evidence that is based upon 3 unreliable principles or methods, legally insufficient facts and data, or where the reasoning 4 or methodology is not sufficiently tied to the facts of the case.” Summit 6, LLC v. Samsung 5 Elecs. Co., 802 F.3d 1283, 1295 (Fed. Cir. 2015); see also Pyramid Techs., Inc. v. Hartford 6 Cas. Ins. Co., 752 F.3d 807, 813 (9th Cir. 2014) (“[T]he trial court must assure that the 7 expert testimony both rests on a reliable foundation and is relevant to the task at hand.” 8 (internal quotation marks omitted)); Messick v. Novartis Pharms. Corp., 747 F.3d 1193, 9 1196–97 (9th Cir. 2014) (“Relevancy depends on the particular law at issue.”); Primiano, 10 598 F.3d at 565 (“Expert opinion testimony is relevant if the knowledge underlying it has 11 a valid connection to the pertinent inquiry.

Free access — add to your briefcase to read the full text and ask questions with AI

Lighting Defense Group LLC v. Shanghai Sansi Electronic Engineering Company Limited, (D. Ariz. 2024).

Lighting Defense Group LLC v. Shanghai Sansi Electronic Engineering Company Limited (Lighting Defense Group LLC v. Shanghai Sansi Electronic Engineering Company Limited) — published by Counsel Stack Legal Research, free access to 12M+ legal documents.

Related

Primiano v. Cook
598 F.3d 558 (Ninth Circuit, 2010)
ResQNet. Com, Inc. v. Lansa, Inc.
594 F.3d 860 (Federal Circuit, 2010)
Daubert v. Merrell Dow Pharmaceuticals, Inc.
509 U.S. 579 (Supreme Court, 1993)
General Electric Co. v. Joiner
522 U.S. 136 (Supreme Court, 1997)
Kumho Tire Co. v. Carmichael
526 U.S. 137 (Supreme Court, 1999)
Lucent Technologies, Inc. v. Gateway, Inc.
580 F.3d 1301 (Federal Circuit, 2009)
Harris Corporation v. Ericsson, Inc.
417 F.3d 1241 (Federal Circuit, 2005)
Powell v. Home Depot U.S.A., Inc.
663 F.3d 1221 (Federal Circuit, 2011)
Interactive Pictures Corp. v. Infinite Pictures, Inc.
274 F.3d 1371 (Federal Circuit, 2001)
Whitserve, LLC v. Computer Packages, Inc.
694 F.3d 10 (Federal Circuit, 2012)
Laserdynamics, Inc. v. Quanta Computer, Inc.
694 F.3d 51 (Federal Circuit, 2012)
Georgia-Pacific Corp. v. United States Plywood Corp.
318 F. Supp. 1116 (S.D. New York, 1970)
Linda Messick v. Novartis Pharmaceuticals Corp.
747 F.3d 1193 (Ninth Circuit, 2014)
Apple Inc. v. Motorola, Inc.
757 F.3d 1286 (Federal Circuit, 2014)
Virnetx, Inc. v. Cisco Systems, Inc.
767 F.3d 1308 (Federal Circuit, 2014)