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Patent opinions from the Eastern District of Texas and the U.S. Court of Appeals for the Federal Circuit

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E.D. Tex.

Headwater Research LLC v. AT&T Inc. et al, No. 2:23-cv-00397 (E.D. Tex. July 29, 2025)

Denied
Daubert / Expert Challenges Damages
Court
U.S. District Court for the Eastern District of Texas, Marshall Division
Case No.
No. 2:23-cv-00397, Dkt. No. 259
Decided
July 29, 2025
Judge
Roy S. Payne, M.J. — Marshall
Document
Memorandum Order
Length
1 page
Download Opinion (PDF)

IN THE UNITED STATES DISTRICT COURT

FOR THE EASTERN DISTRICT OF TEXAS

MARSHALL DIVISION

HEADWATER RESEARCH LLC, §

§ Plaintiff, § § v. § § CIVIL ACTION NO. 2:23-CV-397-JRG-RSP AT&T INC., AT&T SERVICES, INC., § (LEAD CASE)

AT&T MOBILITY, LLC, and AT&T § CORP., §

§

§

Defendants. .

MEMORANDUM ORDER

Before the Court is the Daubert Motion to Exclude Expert Opinions of Coleman Bazelon, filed by the AT&T Defendants. Dkt. No. 133.

A substantively identical motion was filed in a parallel litigation: Headwater Research LLC v. Verizon Communications Inc., et al, 2:23-cv-00352-JRG-RSP. See Dkt. No. 186 in 2:23-cv-00352.

For the reasons discussed in the Court’s ruling on the parallel motion (Dkt. No. 321 in 2:23-cv-00352), the instant Motion is also DENIED.1 SIGNED this 3rd day of January, 2012. SIGNED this 29th day of July, 2025.

ROY S. PAYNE

UNITED STATES MAGISTRATE JUDGE

Footnotes

  1. ↩ 1 Defendants’ other concerns regarding the use of the large dollar-value figures seen on page 6 of Defendants’ Motion are addressed in the Court’s Order on the Motions in limine. Dkt. No. 234 at 3.

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Cite this opinion

Headwater Research LLC v. AT&T Inc. et al, No. 2:23-cv-00397 (E.D. Tex. July 29, 2025).

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