LAMBETH MAGNETIC STRUCTURES, LLC v. SEAGATE TECHNOLOGY (US) HOLDINGS, INC et al

Filing 425

MEMORANDUM ORDER resolving Plaintiff's Motions in Limine. See contents of this filing. Signed by Judge Cathy Bissoon on 3/22/2022. (ahm)

IN THE UNITED STATES DISTRICT COURT
FOR THE WESTERN DISTRICT OF PENNSYLVANIA
LAMBETH MAGNETIC STRUCTURES, )
LLC,
)
Plaintiff,
)
)
v.
)
)
SEAGATE TECHNOLOGY (US)
)
HOLDINGS, INC., et al.,
)
)
Defendants.
)

Civil Action No. 16-538
Judge Cathy Bissoon

MEMORANDUM ORDER
Plaintiff’s Motions in Limine (“MIL”) are resolved as follows.
MIL 1 (Doc. 305) to preclude evidence and argument to the jury related to the standing
issue is DENIED AS MOOT in light of the Court’s March 14, 2022 Order (Doc. 412) that
Plaintiff is entitled to summary judgment on Defendants’ affirmative defenses of lack of standing
and express license.
MIL 2 (Doc. 306) to exclude portions the expert testimony of Dr. Eric Fullerton and Dr.
Eric Stach is DENIED. Plaintiff’s objections are improper Daubert challenges because they go
to the weight of the experts’ opinions, not their admissibility. To be sure, while any testimony
that disregards the Court’s prior claim construction order would not be countenanced, the dueling
experts are free to challenge the methods employed by and the conclusions reached by their
counterparts.
MIL 3 and MIL 4 (Docs. 285 & 307), to preclude the testimony of John Morris and any
evidence or argument regarding litigation funders, respectively, are DENIED AS MOOT in
light of Defendants’ stipulation dated March 11, 2022. (Doc. 410.)

MIL 5 (Doc. 308) to preclude any evidence or argument of non-infringement on topics
for which Seagate’s Rule 30(b)(6) witness disclaimed knowledge is DENIED. Because the
testimony of a Rule 30(b)(6) witness is not considered to be a formal and final judicial
admission, it does not preclude Defendants from offering additional or even contradictory proof
at trial. See Hanna v. Giant Eagle Inc, 777 F. App’x 41, 42 (3d Cir. 2019) (explaining that
testimony of a Rule 30(b)(6) witness may be contradicted or used for impeachment at trial).
MIL 6 (Doc. 288) to preclude all evidence and argument relating to patent invalidity
under 35 U.S.C. § 101 is DENIED AS MOOT in light Defendants’ election to have the Court
decide that issue post-trial. (Doc. 325.)
MIL 7 (Doc. 289) to preclude all evidence and argument relating to patent invalidity
under 35 U.S.C. §§ 102 and 103 is GRANTED IN PART AND DENIED IN PART. While
Defendants concede that they are not pursuing affirmative defenses of invalidity under §§ 102
and 103, to the extent the underlying evidence also is relevant to other issues in this case—i.e.,
damages, lack of enablement and non-infringement—the Court will determine its relevancy, if
necessary, during the course of trial.
MIL 8 (Doc. 290) to exclude portions of the expert testimony of Dr. Caroline A. Ross
regarding Seagate’s Section 112 defenses is DENIED. Plaintiff’s disagreement with Dr. Ross’s
formulation of POSITA does not render her opinion inadmissible under Daubert. Rather, such
arguments properly go to the weight of the evidence. Similarly, Plaintiff’s objection to Dr.
Ross’s opinion regarding the “screening” measurements challenges her conclusions, not her
qualifications or methodology.
MIL 9 (Doc. 309) to exclude portions of the expert testimony of John C. Jarosz and to
exclude evidence of Plaintiff’s tax return from the jury is DENIED. Plaintiff’s objections are

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improper under Daubert because they challenge Jarosz conclusions. Such challenges properly go
to the weight of the evidence, not admissibility. And Plaintiff’s valuation of the ’988 Patent as
reflected in the tax returns is probative evidence of the reasonableness of the claimed royalty
damages.
MIL 10 (Doc. 292) to sustain objections to an exclude Seagate’s deposition designations
is DENIED without prejudice. Not only has Plaintiff failed provide sufficient reasoning for the
Court to evaluate the requested exclusions, but some of the requests also are moot in light of the
Court’s recent orders as well as Defendants’ withdrawal of certain deposition designations. (Doc.
355.)

IT IS SO ORDERED.
March 22, 2022

s/Cathy Bissoon
Cathy Bissoon
United States District Judge

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