PTAB challenges

Proceedings overview

One AIA trial proceeding has been filed against US patent 8545247, which has been Terminated-Settled. This indicates that while the patent has not been subjected to a final written decision by the PTAB, the patent owner and petitioner reached a private agreement. Consequently, no claims were invalidated by the PTAB in this proceeding, leaving all claims of the patent untested by a final PTAB ruling and potentially still vulnerable to future challenges.

IPR2026-00005 — Nintendo Co., Ltd. et al. v. Malikie Innovations Ltd.

• Type: Inter Partes Review
• Filed: 2025-10-08
• Status: Terminated-Settled. This indicates that the parties involved reached a settlement agreement and the proceeding was concluded before a final decision on the merits of the patentability challenge.
• Judge panel: Information regarding the specific Administrative Patent Judges (APJs) assigned to the merits panel for this proceeding is not publicly available in the search results. Following USPTO policy changes effective October 20, 2025, the Director now initially decides whether to institute IPR and PGR trials, and only after institution is the petition referred to an APJ panel.
• Petition grounds: Specific details regarding which claims of US8545247 were challenged, the prior art asserted, and the statutory bases (§ 102 / § 103 / § 112) of the challenge are not explicitly detailed in the publicly available search snippets. The patent was part of a broader litigation campaign where Nintendo filed IPR petitions under "invalidation pressure".
• Institution decision: The proceeding was filed in October 2025, and by December 2025, the IPR petitions filed by Nintendo were still pending. Given the settlement and termination date of March 2, 2026, it is not definitively clear from the search results whether an institution decision was issued before the settlement, or if the settlement occurred prior to such a decision. The "Terminated-Settled" status means the proceeding concluded without a formal decision on institution or a Final Written Decision.
• Final Written Decision: Not issued, as the proceeding was terminated due to settlement.
• Settlement / termination: The proceeding was terminated as settled, with the last modification recorded on 2026-03-02. This settlement is understood to be part of a broader resolution between Malikie Innovations Ltd. and Nintendo Co., Ltd. that included the withdrawal of infringement claims and revocation counterclaims in parallel Unified Patent Court (UPC) litigation. The specific terms of the settlement are confidential.
• Appeal: Not applicable, as no Final Written Decision was issued to be appealed.
• Defensive value: This IPR did not result in any claims being invalidated by the PTAB, as it was settled. For a defendant currently facing assertion of this patent, this means that while the patent has not been "hardened" by surviving a full IPR trial, its claims also haven't been canceled by the PTAB. The petitioner, Nintendo, and any parties in privity with them, would be estopped under 35 U.S.C. § 315(e)(2) from challenging any grounds that were raised or reasonably could have been raised in this IPR. However, without knowing the specific grounds of the petition, the exact scope of this estoppel is difficult to ascertain.

Strategic summary

All claims of US8545247 are currently UNTESTED by a Final Written Decision from the PTAB. The sole IPR proceeding, IPR2026-00005, was Terminated-Settled between Nintendo Co., Ltd. and Malikie Innovations Ltd. on 2026-03-02, meaning no claims were formally challenged to a verdict by the PTAB. This leaves the patent's validity as determined by the original examination process, and its enforceability is not yet affected by any PTAB invalidation.

Regarding the estoppel landscape, 35 U.S.C. § 315(e)(2) would bar Nintendo and its privies from raising any patentability ground that was raised or reasonably could have been raised during IPR2026-00005. However, since the specific claims and prior art challenged in the petition are not publicly detailed in the provided information, the precise scope of this estoppel is unknown. For other potential defendants, prior-art grounds not implicated by IPR2026-00005 (or other prior art not available to Nintendo at the time) would still be available for challenging the patent.

The patent owner, Malikie Innovations Ltd., is a patent licensing firm that acquired a substantial portfolio from BlackBerry, and has been actively asserting these patents, including US8545247, against companies like Nintendo in multiple jurisdictions. The settlement in this IPR, alongside the withdrawal of claims and counterclaims in parallel UPC litigation, suggests a strategic resolution rather than a full legal victory or loss on the merits of patentability for either party. There are no other PTAB proceedings on file for this patent.

Recommended next steps

Since IPR2026-00005 was terminated due to settlement and no Final Written Decision was issued, no claims of US8545247 were invalidated by the PTAB in this proceeding. Therefore, there is no FWD to link to or quote for claim invalidation. All claims of the patent remain legally intact regarding PTAB challenges.

Given that no active PTAB proceedings are currently pending against US8545247, a defendant facing assertion of this patent would need to evaluate whether to initiate a new IPR. The absence of PTAB activity could be a signal that the patent has not been subjected to robust challenges, or it could reflect the patent owner's strategy of settling disputes before they reach a final PTAB decision. Due to recent changes in USPTO policy, institution decisions are now made by the Director, with an increased focus on discretionary denials, especially if the IPR appears to be a "second bite at the apple" after district court litigation or if the petitioner has a limited U.S. manufacturing footprint. This new policy landscape makes careful strategic consideration of a new IPR filing even more critical.