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

E.D. Tex.

Phenix Longhorn, LLC v. AU Optronics Corporation et al, No. 2:23-cv-00477 (E.D. Tex. Jan. 12, 2026)

Denied
Court
U.S. District Court for the Eastern District of Texas, Marshall Division
Case No.
No. 2:23-cv-00477, Dkt. No. 429
Decided
January 12, 2026
Judge
Roy S. Payne, M.J.
Document
Memorandum Order
Docket Entry
MEMORANDUM AND OPINION DENYING 261 OPPOSED SEALED MOTION TO STRIKE PORTIONS OF EXPERT REPORTS OF JOSEPH MCALEXANDER REGARDING INFRINGEMENT AND VALIDITY (Motion(s)261 terminated)
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 Defendants ’ Motion to Strike Portions of Expert Reports of Joseph McAlexander Regarding Infringement and Validity . Dkt. No. 261. The motion is fully briefed . See Dkt. Nos. 302, 324, 365. In the Motion, Defendants seek to strike portions of Plaintiff’s technical expert’s reports that rely on allegedly (1) previously undisclosed infringement theories— especially those related to U.S. Patent No. 7,557,788 (“’788 Patent”) —(2) an untimely erratum alleging infringement of limitation 1[d] of U.S. Patent No.