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

E.D. Tex.

Ningde Amperex Technology Limited v. Zhuhai CosMX Battery Co., Ltd., No. 2:24-cv-00728 (E.D. Tex. Aug. 18, 2025)

Granted
Court
U.S. District Court for the Eastern District of Texas, Marshall Division
Case No.
No. 2:24-cv-00728, Dkt. No. 69
Decided
August 18, 2025
Judge
Rodney Gilstrap, J.
Document
Memorandum Opinion and Order
Docket Entry
MEMORANDUM OPINION AND ORDER re 63 SEALED MOTION for Leave to Amend Invalidity Contentions (Motion(s)63 terminated)
Length
8 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 Partially Opposed Motion for Leave to Amend Invalidity Contentions (the “Motion”) filed by Defendant Zhuhai CosMX Battery Co., Ltd. (“Defendant” or “CosMX”). (Dkt. No. 63.) Having considered the Motion, the Court finds that it should be GRANTED. I. BACKGROUND Plaintiff Ningde Amperex Technology Limited (“Plaintiff” or “ATL”) filed suit against Defendant on September 6, 2024. (Dkt. No. 1.) Plaintiff alleges that Defendant infringes six United States patents. (Dkt. No.