PTAB challenges

Proceedings overview

One AIA trial proceeding has been filed against US patent 11930362. This proceeding resulted in an institution denied status due to discretionary reasons. This means the patent claims have not been adjudicated on their merits in an AIA trial, leaving them untested in this forum.

IPR2026-00210 — Cisco Systems, Inc. v. Damaka Inc

• Type: Inter Partes Review
• Filed: 2026-01-13
• Status: Discretionary Denial - The petition was denied institution by the PTAB on 2026-05-06.
• Judge panel: The specific judge panel for this denial is not detailed in publicly available search results. The Director of the USPTO now makes the decision on whether to institute IPRs, often issuing summary notices.
• Petition grounds: Specific details regarding the claims challenged, prior art asserted, and statutory bases (§ 102 / § 103) are not readily available in the provided search results or snippets for this specific IPR. IPRs generally only allow challenges based on prior art consisting of patents or printed publications under § 102 or § 103.
• Institution decision: Denied on 2026-05-06. The decision outcome was "Institution Denied." The specific reasoning for the discretionary denial for IPR2026-00210 is not detailed in the provided search results. However, recent trends show that the PTAB has adopted a more restrictive, policy-driven approach to IPR institution, including considerations like parallel district court litigation (Fintiv factors), real party in interest identification, and a new domestic-industry factor.
• Final Written Decision: Not issued, as institution was denied.
• Settlement / termination: Not applicable, as institution was denied.
• Appeal: Not applicable, as institution was denied. Federal Circuit review of institution decisions, particularly discretionary ones, is often barred.
• Defensive value: The patent owner successfully prevented the IPR from proceeding on discretionary grounds, meaning the claims of US11930362 were not subject to a merit-based PTAB validity challenge in this proceeding. For a defendant, it means the patent claims remain untested by this specific IPR. An analysis of the underlying petition and the PTAB's detailed reasoning for the discretionary denial (if publicly accessible in the full decision document) would be necessary to understand the specific vulnerabilities or strengths of this particular petition.

Strategic summary

All claims of US11930362 are currently UNTESTED in AIA trial proceedings. The single IPR petition filed against this patent, IPR2026-00210, was denied institution on discretionary grounds rather than on the merits of patentability. This means the patent has not been narrowed or found patentable over the asserted prior art in an AIA trial.

Regarding the estoppel landscape, since institution was denied on discretionary grounds, the petitioner (Cisco Systems, Inc.) and its privies are generally not estopped under 35 U.S.C. § 315(e)(2) from raising the same or reasonably could-have-raised grounds in other forums, especially if the denial was not based on the merits of the patentability challenge. However, the exact scope of estoppel depends heavily on the specific reasoning provided in the PTAB's denial decision. For a defendant being asserted against, this means that the prior-art grounds raised in the IPR2026-00210 petition may still be available for use in district court litigation or a new PTAB petition, assuming other statutory requirements are met.

As for pattern signals, only one IPR has been filed against US11930362, resulting in a discretionary denial. This does not establish a clear pattern of successful defense or aggressive patent owner appeals in PTAB. The fact that a denial occurred due to discretionary reasons, which have seen increased application under current USPTO Director John A. Squires, indicates the importance of understanding the PTAB's evolving institution policies, such as Fintiv factors, real party in interest rules, and the domestic industry considerations.

Recommended next steps

• Since IPR2026-00210 was denied institution, no claims of US11930362 were invalidated or sustained by a Final Written Decision. The claims remain patentable as far as AIA trial proceedings are concerned.
• For a defendant facing assertion of this patent, it is crucial to obtain and thoroughly review the full institution denial decision for IPR2026-00210. This document, available on the USPTO PTAB Decisions portal, would provide the detailed reasoning behind the discretionary denial. Understanding this reasoning is vital to evaluate if a new IPR petition could be crafted to address the PTAB's concerns or if the prior art presented by Cisco Systems, Inc. (and potentially other prior art) could be effectively used in district court without being barred by estoppel.
• As there are no active proceedings with an institution date, there are no upcoming trial-stage milestones (e.g., oral hearing, FWD due date) to monitor for this patent in PTAB.