PTAB challenges

Proceedings overview

There is one AIA trial proceeding on US patent 12015118, which was terminated due to settlement. This means the claims were not adjudicated on the merits by the PTAB, and the patent's validity remains untested by the board.

IPR2025-00524 — Zhuhai CosMX Battery Co., Ltd. v. Ningde Amperex Technology Ltd.

• Type: Inter Partes Review
• Filed: 2025-04-02
• Status: Terminated-Settled
• Judge panel: Not publicly available at the time of termination.
• Petition grounds: Specific claims, prior art, and statutory bases (§ 102 / § 103 / § 112) for the petition are not publicly detailed in the provided information for terminated-settled cases without a full institution decision or FWD.
• Institution decision: The status shows "Instituted," indicating the PTAB decided to initiate a review of at least some of the challenged claims. However, the exact date and detailed reasoning for institution are not available due to the subsequent settlement.
• Final Written Decision (if issued): Not issued. The proceeding was terminated due to settlement.
• Settlement / termination: Terminated-Settled on 2026-06-26. The specific terms of the settlement are confidential.
• Appeal: No appeal to the Federal Circuit, as the case was settled before a Final Written Decision.
• Defensive value: The settlement means the claims of US12015118 were not adjudicated for patentability by the PTAB. While the institution of the IPR suggests the petitioner raised sufficient grounds to warrant a review, the settlement prevents a definitive ruling on claim validity. For a defendant, this means the patent claims have not been challenged and invalidated through an IPR.

Strategic summary

All claims of US12015118 remain UNTESTED by the PTAB. The single IPR proceeding, IPR2025-00524, was instituted but subsequently terminated due to a settlement between Zhuhai CosMX Battery Co., Ltd. and Ningde Amperex Technology Ltd. As no Final Written Decision was issued, there are no claims that have been canceled or sustained by the PTAB.

Regarding estoppel, since the IPR was settled, the estoppel provisions of § 315(e)(2) might still apply to the petitioner (Zhuhai CosMX Battery Co., Ltd.) and its privies for any grounds actually raised or that reasonably could have been raised in the IPR. However, without a public record of the specific claims and prior art challenged in the petition, it's difficult to definitively assess the scope of this estoppel. For other potential defendants, the full range of prior-art grounds remains available to challenge the patent's validity in future proceedings.

The single IPR, initiated by Zhuhai CosMX Battery Co., Ltd., suggests that at least one entity found sufficient grounds to challenge the patent. The settlement indicates a resolution outside of a full PTAB validity determination, which can occur for various business reasons unrelated to the ultimate merits of the patentability challenge.

Recommended next steps

For a defendant facing assertion of this patent, it is important to understand that while an IPR was instituted, the claims were not invalidated. This means the patent owner's claims have not been weakened by a PTAB decision. It would be advisable to investigate the details of IPR2025-00524, if possible, to understand the initial grounds for institution. Since the proceeding was settled, the patent remains in full force. Further analysis would involve an independent prior art search and assessment of the asserted claims.