Patent 11418641

PTAB challenges

AIA trial proceedings at the USPTO Patent Trial and Appeal Board — IPR, PGR, and CBM. Petitioners, judge panels, claim-level invalidation outcomes from Final Written Decisions, and Federal Circuit appeals. The single most important defensive datapoint after litigation history.

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Proceedings on file (1)

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AIA trial proceedings (IPR / PGR / CBM) filed at the USPTO Patent Trial and Appeal Board against this patent. Sourced from the USPTO Open Data Portal and refreshed every six hours; each proceeding number deep-links to the PTAB E2E docket.

1 discretionary denial
Discretionary Denial
Filed
Aug 5, 2025
Last modified
Mar 25, 2026
Petitioner
Red Hat, Inc.
Inventor
Eric M. Delangis

PTAB challenges

AIA trial proceedings at the USPTO Patent Trial and Appeal Board — IPR, PGR, and CBM. Petitioners, judge panels, claim-level invalidation outcomes from Final Written Decisions, and Federal Circuit appeals. The single most important defensive datapoint after litigation history.

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Proceedings overview

One AIA trial proceeding has been filed against US patent 11418641, which concluded with a discretionary denial of institution. This means the patent's claims were not challenged on the merits in an IPR, leaving them untested by the PTAB.

IPR2025-01382 — Red Hat, Inc. v. Competitive Access Systems Inc.

  • Type: Inter Partes Review
  • Filed: 2025-08-05
  • Status: Discretionary Denial (Institution was denied, and the IPR did not proceed to trial)
  • Judge panel: Information not publicly available through general search.
  • Petition grounds: Information regarding specific claims, prior art, and statutory bases (§ 102 / § 103 / § 112) is not publicly available without direct access to the PTAB record for this specific filing.
  • Institution decision: Denied. The petition for IPR2025-01382 was procedurally denied institution. This type of denial typically occurs when the PTAB exercises its discretion under 35 U.S.C. § 314(a) based on factors such as parallel district court litigation (e.g., Fintiv factors) or other procedural considerations, rather than on the merits of the prior art challenge.
  • Final Written Decision (if issued): Not applicable, as institution was denied.
  • Settlement / termination: Not applicable, as institution was denied.
  • Appeal: Not applicable, as there was no Final Written Decision to appeal.
  • Defensive value: The discretionary denial means the claims of US11418641 have not been formally reviewed for patentability by the PTAB. This outcome generally strengthens the patent owner's position as it avoids an IPR trial on the merits, making future IPR challenges against the same claims potentially harder for subsequent petitioners, depending on the specific grounds for denial and new arguments/art.

Strategic summary

All claims of US11418641 remain untested by the PTAB. There are no canceled or sustained claims as a result of PTAB proceedings. The sole IPR filed, IPR2025-01382 by Red Hat, Inc., was denied institution on discretionary grounds, meaning the PTAB did not reach the merits of the patentability challenge.

Given the discretionary denial in IPR2025-01382, no statutory estoppel under 35 U.S.C. § 315(e)(2) applies to the petitioner, Red Hat, Inc., or its privies with respect to the specific grounds raised in that petition. However, the Fintiv factors or similar discretionary considerations applied by the PTAB can make it more challenging for a petitioner to institute an IPR if there is parallel district court litigation involving the same patent. For a defendant currently facing assertion of this patent, all prior-art grounds remain theoretically available, as no claims have been adjudicated by the PTAB.

This patent has seen a single IPR attempt which was procedurally denied institution. The information available suggests this patent is involved in active litigation in various district courts (Texas Eastern, Texas Northern, North Carolina Eastern, California Northern) and has also seen a "First worldwide family litigation filed". The discretionary denial of IPR2025-01382, likely due to these parallel district court proceedings, indicates the patent owner is actively enforcing the patent in court and successfully fended off an IPR challenge at the institution stage.

Recommended next steps

The patent has successfully avoided a full IPR trial, meaning its claims have not been subjected to PTAB scrutiny on the merits. If you are a defendant facing assertion of US11418641, you should investigate the specific reasons for the discretionary denial in IPR2025-01382. Understanding the PTAB's reasoning (e.g., application of Fintiv factors) is crucial for assessing the viability of any future IPR filings. The official status from the PTAB portal for IPR2025-01382 can be accessed via the USPTO PTAB E2E system (e.g., search for IPR2025-01382 on https://ptab.uspto.gov/#/search/). The current absence of claims invalidated by the PTAB means that any infringement theory built upon the patent's claims is currently unimpaired by PTAB decisions.

Generated 5/21/2026, 12:48:26 PM