PTAB challenges

Proceedings overview

There is one PTAB proceeding on file for US Patent 10,574,721, which resulted in a discretionary denial of institution. This means the patent's claims remain untested and unhardened by PTAB review.

IPR2025-01400 — CrowdStrike, Inc. et al. v. Skysong Innovations, LLC

• Type: Inter Partes Review
• Filed: 2025-09-12
• Status: Discretionary Denial - The PTAB declined to institute the IPR on procedural grounds rather than on the merits of the patentability challenge.
• Judge panel: Not publicly available in the provided information.
• Petition grounds: Not publicly available in the provided information.
• Institution decision: Denied - 2026-02-19. The petition was denied institution for procedural reasons.
• Final Written Decision: Not applicable as institution was denied.
• Settlement / termination: Not applicable as institution was denied.
• Appeal: No Federal Circuit appeal as institution was denied.
• Defensive value: This proceeding offers no direct defensive value as no claims were challenged on the merits or invalidated. The patent claims remain as originally issued.

Strategic summary

Currently, all claims of US10574721 remain UNTESTED by PTAB review, as the sole IPR filed (IPR2025-01400) was denied institution on procedural grounds. This means there is no narrowing of the patent's scope through PTAB proceedings, and all claims are still available for assertion.

Regarding estoppel, since IPR2025-01400 was denied institution, the petitioner (CrowdStrike, Inc. et al.) is not subject to § 315(e)(2) estoppel for any grounds raised or that reasonably could have been raised in that petition. Therefore, any prior-art grounds are still available for potential future challenges by other parties.

There are some pattern signals to note: Unified Patents is listed as a petitioner in the general litigation information, which indicates a defensive aggregator's involvement. The IPR itself lists "CrowdStrike, Inc. et al." as petitioners, which may suggest a joint effort or multiple parties interested in challenging the patent.

Recommended next steps

Since IPR2025-01400 was denied institution and no claims were invalidated, there is no Final Written Decision to link to for claim cancellation. If you are a defendant facing assertion of this patent, the claims remain valid as issued.

There are no active PTAB proceedings currently pending that have reached the trial stage. However, the presence of an IPR filing, even one denied institution, indicates that parties perceive potential vulnerabilities in the patent. It would be advisable to monitor any future filings or challenges.## Proceedings overview

There is one PTAB proceeding on file for US Patent 10,574,721, IPR2025-01400, which resulted in a discretionary denial of institution. This means the patent's claims remain untested by PTAB review, and the patent is not hardened or weakened by this particular proceeding.

IPR2025-01400 — CrowdStrike, Inc. et al. v. Skysong Innovations, LLC

• Type: Inter Partes Review
• Filed: 2025-09-12
• Status: Discretionary Denial — The PTAB declined to institute the IPR for procedural reasons, rather than on the merits of the patentability challenge.
• Judge panel: Not publicly available in the provided information. (While some PTAB judge panels are publicly listed, the specific panel for IPR2025-01400 is not immediately discernible from the provided data).
• Petition grounds: Not publicly available in the provided information. (The specific claims challenged and prior art asserted were not included in the provided snippets).
• Institution decision: Denied - 2026-02-19. The petition was denied institution for procedural reasons. PTAB discretionary denials can occur for various reasons, including the status of parallel litigation or other policy considerations.
• Final Written Decision: Not applicable as institution was denied.
• Settlement / termination: Not applicable as institution was denied.
• Appeal: No Federal Circuit appeal as institution was denied. Under 35 U.S.C. § 314(d), institution decisions are generally not appealable to the Federal Circuit.
• Defensive value: This proceeding offers no direct defensive value as no claims were challenged on the merits or invalidated. The patent claims remain as originally issued, meaning an IPR-based defense would need to start anew with a new petition.

Strategic summary

Currently, all claims of US105747721 remain UNTESTED by PTAB review, as the sole IPR filed (IPR2025-01400) was denied institution on procedural grounds. This means there is no narrowing of the patent's scope through PTAB proceedings, and all claims are still available for assertion.

Regarding estoppel, since IPR2025-01400 was denied institution, the petitioner (CrowdStrike, Inc. et al.) is not subject to § 315(e)(2) estoppel for any grounds raised or that reasonably could have been raised in that petition. Therefore, any prior-art grounds are still available for potential future challenges by other parties.

There are some pattern signals to note: Unified Patents is listed as a petitioner in the general litigation information, which indicates a defensive aggregator's involvement. The IPR itself lists "CrowdStrike, Inc. et al." as petitioners, which may suggest a joint effort or multiple parties interested in challenging the patent. The denial of institution for procedural reasons, rather than on the merits, suggests the PTAB's decision was likely based on internal policy or factors such as parallel district court litigation, which are often considered in discretionary denials.

Recommended next steps

Since IPR2025-01400 was denied institution and no claims were invalidated, there is no Final Written Decision to link to for claim cancellation. If you are a defendant facing assertion of this patent, the claims remain valid as issued.

No active PTAB proceedings are currently pending for US10574721. The absence of an instituted IPR or a final written decision means that the patent has not been subjected to the full scrutiny of an AIA trial. Well-asserted patents often attract IPRs, and the fact that an IPR was filed, even if denied institution, suggests that potential prior art against this patent may exist.