PTAB challenges

Proceedings overview

There is one AIA trial proceeding on file for US patent 10763865. This proceeding, IPR2026-00384, is currently pending and in its very early stages. Consequently, no claims have been invalidated or sustained by the PTAB through a final written decision, and the patent's defensive posture remains largely unhardened by PTAB trials at this time.

IPR2026-00384 — Optiver US LLC et al. v. Nima Badizadegan

• Type: Inter Partes Review
• Filed: 2026-06-02
• Status: Pending. This IPR was filed just yesterday and is in its initial stages, meaning the PTAB has not yet decided whether to institute a trial.
• Judge panel: Not yet public, as the IPR is newly filed and a panel has not been assigned or announced.
• Petition grounds: The specific claims challenged, prior art asserted, and statutory bases (§ 102 / § 103 / § 112) are not yet publicly available in detail without accessing the petition document itself.
• Institution decision: Not issued. The PTAB has a statutory deadline of six months from the filing date to decide whether to institute the IPR.
• Final Written Decision: Not issued.
• Settlement / termination: Not applicable at this early stage.
• Appeal: Not applicable.
• Defensive value: Given that the IPR was just filed, its defensive value is limited to indicating that the patent is under challenge. There are no definitive outcomes (claims canceled or sustained) yet. For a defendant facing assertion of this patent, this IPR indicates potential vulnerability, but no claims have been proven unpatentable as of yet.

Strategic summary

Currently, all claims of US patent 10763865 remain UNTESTED by a final PTAB decision. The single Inter Partes Review, IPR2026-00384, was filed very recently on 2026-06-02 and is still in the preliminary stages before institution. Therefore, there has been no narrowing of the patent's claims through PTAB proceedings, and all originally granted claims are currently considered valid from a PTAB trial perspective.

The estoppel landscape is not yet established for US 10763865 as no Final Written Decision has been issued. Until an IPR proceeds to a final written decision, the statutory estoppel provisions of § 315(e)(2) do not apply. This means that, currently, any prior-art grounds are still available for potential challenges by other parties. It is too early to discern any patterns regarding the petitioner or patent owner's strategies, as this is the first recorded IPR for the patent.

Recommended next steps

Since IPR2026-00384 is pending, the primary milestone to monitor is the institution decision deadline. The PTAB has until approximately 2026-12-02 (six months from the filing date) to decide whether to institute a trial on the challenged claims. A defendant facing assertion of this patent should closely follow this proceeding, as an institution decision (especially a favorable one for the petitioner) could significantly impact the strength of the patent. If the IPR is instituted, further monitoring of the trial-stage milestones, such as the oral hearing and the one-year statutory deadline for a Final Written Decision, would be crucial.