PTAB challenges

Proceedings overview

There is currently one AIA trial proceeding on file for US patent 12143425, which is IPR2026-00371. This proceeding is pending, offering a potential defensive avenue for a defendant.

IPR2026-00371 — Palo Alto Networks, Inc. v. Qomplx Inc.

• Type: Inter Partes Review
• Filed: 2026-05-26
• Status: Pending. The petition has been filed and is awaiting preliminary review by the PTAB.
• Judge panel: Not yet assigned or made public.
• Petition grounds: Not yet public.
• Institution decision: Not yet issued. The deadline for the institution decision is not yet known but typically falls within six months of the preliminary response or waiver thereof.
• Final Written Decision: Not yet issued.
• Settlement / termination: No settlement or termination has occurred as the proceeding is in its early stages.
• Appeal: Not applicable at this stage.
• Defensive value: This active IPR provides a potential challenge to the patentability of claims in US12143425. If instituted and successful, it could invalidate claims, weakening any assertion based on those claims. Conversely, if institution is denied or the patent owner prevails, it would strengthen the patent's validity.

Strategic summary

Currently, all claims of US patent 12143425 are UNTESTED by a final written decision from the PTAB. The single pending IPR (IPR2026-00371) initiated by Palo Alto Networks, Inc. is in its very early stages, meaning no claims have been canceled or sustained through an AIA trial proceeding.

Regarding the estoppel landscape, since there are no final written decisions, the estoppel provisions of § 315(e)(2) do not yet apply. This means that a defendant facing assertion of this patent still has all prior-art grounds available for challenging the patent's validity.

There are no apparent pattern signals such as multiple IPRs from the same petitioner or aggressive PTAB appeals by the patent owner at this time, given the single, recent filing.

Recommended next steps

For a defendant facing assertion of this patent, it is crucial to monitor the progress of IPR2026-00371. The key upcoming milestone will be the institution decision, which is typically due around six months from the patent owner's preliminary response (or waiver thereof). If the IPR is instituted, it will provide insights into the strength of the petitioner's prior art arguments and the PTAB's initial assessment of the claims' patentability.

If the IPR proceeds to a Final Written Decision, that decision will be publicly available on the USPTO PTAB Decisions website.