A new inter partes review, IPR2026-00408, was filed at the Patent Trial and Appeal Board on July 28, 2026, under the caption Zhuhai CosMX Battery Co., Ltd. For patent practitioners tracking battery-sector disputes and PTAB filing trends, this is a proceeding worth watching as the record develops.

At this early stage, the publicly available docket information identifies the petitioner as Zhuhai CosMX Battery Co., Ltd., but the initial case caption alone does not yet provide the full picture of the challenged patent, the patent owner, or the specific prior-art combinations being asserted.

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.