Patent Case Watch

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

E.D. Tex.

Headwater Research LLC v. AT&T Inc. et al, No. 2:23-cv-00397 (E.D. Tex. Aug. 4, 2025)

Granted in Part
Motion to Strike Daubert / Expert Challenges Non-Infringement
Court
U.S. District Court for the Eastern District of Texas, Marshall Division
Case No.
No. 2:23-cv-00397, Dkt. No. 278
Decided
August 4, 2025
Judge
Roy S. Payne, M.J.
Document
Memorandum Order
Docket Entry
ORDER granting 136 Sealed Motion
Length
7 pages

From the Opinion

The passage below is extracted verbatim from the opening of the document. It has not been editorially summarized — consult the full opinion for the court's complete reasoning.

Before the Court is the Motion to Strike Certain Opinions of AT&T’s Rebuttal Expert Nenad Medvidovic, filed by Plaintiff Headwater Research LLC. Dkt. No. 136. For the reasons discussed below, the Motion is GRANTED to the extent that all sections of Dr. Medvidovic’s report comparing the ItsOn APK to the Accused Products for non- infringement arguments are STRICKEN, and otherwise denied. I.

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Source: govinfo.gov USCOURTS collection · retrieved July 23, 2026 · Report an error

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