PTAB challenges

Proceedings overview

One AIA trial proceeding has been filed against US Patent 9651320, with a status of Discretionary Denial. This indicates that the PTAB declined to institute a trial, meaning the patent's claims have not been challenged or altered through this IPR process. From a defensive posture, the patent is currently hardened against this specific challenge.

IPR2025-01288 — [Dell Technologies Inc. et al](/litigations/by-defendant/Dell%20Technologies%20Inc.%20et%20al). v. Cloud Byte LLC.

• Type: Inter Partes Review
• Filed: 2025-07-14
• Status: Discretionary Denial – The PTAB declined to institute a trial, meaning the merits of the petition's patentability challenges were not fully considered.
• Judge panel: Information not publicly available at this stage or not routinely disclosed for discretionary denials.
• Petition grounds: Details of the specific claims challenged, prior art, and statutory bases (§ 102 / § 103 / § 112) are not public given the discretionary denial, but the petitioner was Dell Technologies Inc. et al. against inventor Kumiko SUZUKI.
• Institution decision: Denied on 2026-01-15. The PTAB issued a Discretionary Denial, which means the Board decided not to institute the IPR trial, likely based on factors other than the merits of the patentability challenge (e.g., parallel litigation, advanced stage of litigation, or reasons under Fintiv or NHK Spring).
• Final Written Decision (if issued): Not issued, as institution was denied.
• Settlement / termination: Not applicable, as institution was denied.
• Appeal: No appeal possible, as no final written decision was rendered.
• Defensive value: The patent owner successfully fended off this IPR. For a defendant facing assertion, this particular IPR does not weaken the patent. However, the grounds raised in the petition (which are not publicly detailed for a discretionary denial) might still be available for a different defendant to raise in district court or in a future IPR petition, assuming no privity with Dell Technologies Inc. et al. and that the Fintiv/ NHK Spring factors have shifted or are not applicable.

Strategic summary

All claims of US9651320 remain SUSTAINED and UNTESTED on the merits through PTAB proceedings, as the single IPR filed (IPR2025-01288) was denied institution via a discretionary denial. This means no claims were canceled by the PTAB.

The estoppel landscape for US9651320 is currently minimal. Since IPR2025-01288 was denied institution on discretionary grounds, rather than on the merits of patentability, it is generally understood that statutory estoppel under 35 U.S.C. § 315(e)(2) may not apply to the petitioner (Dell Technologies Inc. et al.) regarding the grounds raised in the petition. This is because estoppel typically attaches to grounds that were actually litigated or could have been litigated to a final written decision. For other potential defendants, all prior-art grounds remain available to challenge the patent's validity, assuming they are not in privity with Dell Technologies Inc. et al.

The IPR was filed by a well-known entity in patent challenges, Dell Technologies Inc. et al., which suggests the patent has attracted attention for potential assertion. The discretionary denial on procedural grounds, rather than a full review of the merits, means the patent owner successfully navigated this specific challenge without a determination of patentability. This may signal a strategy by the patent owner or the Board's current stance on discretionary denials in general.

Recommended next steps

• Given that IPR2025-01288 resulted in a discretionary denial, a defendant facing assertion of US9651320 should carefully review the specific reasons for the denial. While the details of the petition grounds are not fully public, understanding the Board's rationale for discretionary denial (e.g., related litigation, stage of litigation) can inform future defense strategies.
• As there are no active PTAB proceedings, any party considering challenging this patent would need to file a new IPR petition. It would be crucial to consider the factors that led to the discretionary denial in IPR2025-01288 to avoid a similar outcome, especially if there is ongoing parallel litigation.
• The absence of claims invalidated through PTAB proceedings means the patent remains intact. Therefore, a thorough prior art search and validity analysis are essential if considering a challenge, as the patent has not yet been subjected to a full merits review at the PTAB.
• You can review the procedural history of IPR2025-01288 on the USPTO's PTAB E2E portal for more insights into the Board's decision.