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.

EireOg Innovations Ltd. v. Cisco Systems Inc., No. 2:24-cv-00224 (E.D. Tex. Apr. 15, 2026)

Granted in Part
Daubert / Expert Challenges Motions in Limine
Court
U.S. District Court for the Eastern District of Texas, Marshall Division
Case No.
No. 2:24-cv-00224, Dkt. No. 467
Decided
April 15, 2026
Judge
Roy S. Payne, M.J.
Document
Memorandum Order
Docket Entry
MEMORANDUM ORDER re 203 SEALED MOTION TO EXCLUDE THE IMPROPER OPINIONS AND TESTIMONY OF MARK CHANDLER filed by Palo Alto Networks, Inc., Fortinet, Inc., International Business Machines Corporation, Cisco Systems Inc., 202 SEALED MOTION TO E…
Length
13 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 are Plaintiff EireOg Innovations Ltd.’s Motion to Strike In Part John C. Ale's Expert Report (Dkt. No. 199); Defendant Cisco Systems Inc.’s Motion to Exclude t he Improper Opinion and Testimony of Eric Chaffee (Dkt. No. 202); and Cisco’s Motion to Exclude the Improper Opinion and Testimony of Mark Chandler (Dkt. No. 203). In the Motions, the Parties seek to strike portions of the respective expert reports that purport to improperly offer opinions of law.

Download Opinion (PDF)

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

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