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.

Empire Technology Development LLC v. Samsung Electronics Co., Ltd. et al, No. 2:23-cv-00427 (E.D. Tex. June 11, 2025)

Granted in Part
Daubert / Expert Challenges Motion to Strike
Court
U.S. District Court for the Eastern District of Texas, Marshall Division
Case No.
No. 2:23-cv-00427, Dkt. No. 227
Decided
June 11, 2025
Judge
Roy S. Payne, M.J.
Document
Memorandum Order
Docket Entry
ORDER granting in part and denying in part 97 Sealed Motion
Length
5 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 Plaintiff Empire Technology Development LLC’s Daubert Motion and Motion to Strike the Opinions of Sundeep Rangan About Alleged Non- Infringing Alternatives. Dkt. No. 97. For the reasons discussed below, the Court GRANTS the Motion only in part. I. LEGAL STANDARD 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…

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

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