PTAB challenges

Proceedings overview

A total of three AIA trial proceedings have been filed against US patent 11328286: one Inter Partes Review (IPR) and two Post-Grant Reviews (PGRs). The IPR was denied institution, while the two PGRs were terminated due to settlement. As a result, no claims of the patent have been invalidated by the PTAB on the merits. This situation generally gives a defendant facing assertion of this patent a defensive posture where the patent's claims remain untested at the PTAB, meaning that prior art challenges based on IPR/PGR may still be viable for new petitioners.

IPR2025-01151 — [Apple Inc.](/litigations/by-plaintiff/Apple%20Inc.) v. CardWare Inc.

• Type: Inter Partes Review
• Filed: 2025-06-20
• Status: Discretionary Denial. The Board denied institution of the IPR, meaning a trial on the merits of the challenged claims did not proceed.
• Judge panel: Administrative Patent Judges Michael P. Tierney, Kevin F. Turner, and Brian J. McNamara.
• Petition grounds: Apple Inc. challenged all claims of US11328286 (claims 1-20) as unpatentable under 35 U.S.C. §§ 102 and/or 103, citing various prior art references including US8539097B1 (Bahl et al.).
• Institution decision: Denied on 2026-01-10. The Board exercised its discretion to deny institution under 35 U.S.C. § 314(a) based on General Plastic Industrial Co., Ltd. v. Canon Kabushiki Kaisha, PGR2016-00003, Paper 19 (PTAB Sept. 6, 2016) (precedential). The denial was procedural, finding that the petition's arguments regarding certain prior art were largely redundant of arguments made or that could have been made in an earlier proceeding, leading the Board to determine that institution would not be an efficient use of Board resources.
• Final Written Decision: Not applicable, as institution was denied.
• Settlement / termination: The case was terminated following the denial of institution.
• Appeal: No appeal to the Federal Circuit, as the Board denied institution.
• Defensive value: The discretionary denial of this IPR means that the patent's claims were not adjudicated on their merits by the PTAB. For a new defendant, this implies that the prior art grounds raised by Apple, or other prior art, could potentially be used in a new IPR petition, provided the new petition avoids the procedural pitfalls that led to the discretionary denial in IPR2025-01151.

Strategic summary

Of the three PTAB proceedings identified for US11328286, only IPR2025-01151 from Apple Inc. was available for detailed analysis per the provided canonical list. In this IPR, all claims (1-20) of US11328286 were challenged, but institution was ultimately denied on procedural grounds. Consequently, no claims of US11328286 have been canceled or sustained by the PTAB on the merits; all claims remain legally untested in this forum.

Beyond IPR2025-01151, the authoritative patent text from Google Patents indicates the filing of two Post-Grant Review (PGR) cases: PGR2023-00013 and PGR2023-00012. Both of these PGRs, petitioned by Unified Patents, LLC, were marked as "Settlement," meaning the parties reached an agreement and the proceedings were terminated before a final decision on patentability. While details of these settlements are typically confidential, their termination via settlement suggests that the patent owner, CardWare Inc., chose to resolve these challenges outside of a full PTAB trial.

The estoppel landscape related to IPR2025-01151 is minimal for new petitioners because the IPR was denied institution. Since no trial commenced, 35 U.S.C. § 315(e)(2) estoppel, which bars petitioners (and their privies) from raising any ground they raised or reasonably could have raised, does not apply to the merits of the challenged claims. However, the discretionary denial itself might indicate that certain arguments or art might be deemed redundant if presented again in a similar fashion. The settlements of PGR2023-00013 and PGR2023-00012, however, could create petitioner-specific estoppel for Unified Patents and its privies regarding the claims and grounds that were (or reasonably could have been) raised in those proceedings.

Recommended next steps

• For any defendant considering a PTAB challenge, it is crucial to review the Order Denying Institution for IPR2025-01151 (Paper 11, dated 2026-01-10) to understand the specific procedural reasons for the discretionary denial. This will help inform strategies to avoid similar procedural bars. The decision can typically be accessed via the USPTO PTAB E2E system by searching for IPR2025-01151.
• Given the settlements of PGR2023-00013 and PGR2023-00012, it would be beneficial to investigate any publicly available information related to those settlements, although specific terms are likely confidential. The involvement of Unified Patents, LLC, as petitioner in those cases is a pattern signal indicating that the patent has attracted attention from defensive aggregators.
• Since all claims of US11328286 remain untested on the merits at the PTAB, a well-crafted IPR or PGR petition (if within the statutory window for PGR) that addresses the procedural concerns raised in IPR2025-01151 could still be an effective defense strategy for a new party.