A new inter partes review, IPR2026-00401, was filed on July 22, 2026, at the Patent Trial and Appeal Board against Zhuhai CosMX Battery Co., Ltd., putting another battery-related patent dispute on the radar for companies operating in the energy storage and electronics supply chain. For patent professionals tracking PTAB activity in advanced manufacturing and battery technology, this case is one to watch closely.

At this early stage, the publicly available docket information identifies the proceeding by the patent owner’s name, Zhuhai CosMX Battery Co., Ltd., but the petition materials will be the key source for confirming the specific patent number, the challenged claims, the identity of the petitioner, and the precise invalidity theories asserted.