DigitalDoors v. First Financial Bank: Four-Patent Cybersecurity Suit Dismissed Without Prejudice
DigitalDoors, Inc. filed suit against First Financial Bank in the Eastern District of Texas, asserting four patents covering Sheltered Harbor compliant data protection systems. The case was voluntarily dismissed without prejudice after 314 days — leaving the door open to refiling and future enforcement action.
Cybersecurity Patent Suit Against Regional Bank Ends Without Merits Ruling
On September 25, 2024, DigitalDoors, Inc. filed a patent infringement action against First Financial Bank, National Association in the Eastern District of Texas (Case No. 2:24-cv-00780). The complaint asserted four U.S. patents — US10250639B2, US10182073B2, US9734169B2, and US9015301B2 — covering technology associated with Sheltered Harbor compliant systems, a data-protection and financial-sector resiliency framework.
The case was voluntarily dismissed without prejudice on August 5, 2025, approximately 314 days after filing. DigitalDoors filed a Motion for Dismissal Without Prejudice, which the court accepted and acknowledged pursuant to Rule 41(a)(1)(A)(i). The order expressly stated that each party bears its own costs, expenses, and attorneys’ fees, and all pending relief not explicitly granted was denied as moot. No merits ruling was issued.
The 314-day timeline suggests the case was resolved — or strategically paused — well before trial. A dismissal without prejudice is notable because it preserves DigitalDoors’ option to refile the same claims against First Financial Bank or pursue other defendants. The public record does not disclose whether a settlement was reached privately; the cost-bearing terms and absence of any prejudice qualifier leave the underlying commercial relationship and licensing status uncertain.
Filing to Dismissed without Prejudice in 314 days
314 days from filing to dismissal — typical E.D. Texas patent cases often run 18–24 months to trial
Voluntarily dismissed without prejudice: what the order means for both parties
Rule 41(a)(1)(A)(i) dismissal: no merits adjudication
Under Federal Rule of Civil Procedure 41(a)(1)(A)(i), a plaintiff may voluntarily dismiss an action before the defendant serves an answer or motion for summary judgment. The court’s order accepted DigitalDoors’ notice and dismissed all claims without prejudice. Critically, no court has ruled on whether the asserted patents are valid, infringed, or enforceable — the slate is legally clean.
No merits ruling issuedWithout prejudice vs. with prejudice: a critical legal distinction
A dismissal without prejudice means DigitalDoors retains the right to refile identical patent claims against First Financial Bank in the future, subject to applicable statutes of limitations. A dismissal with prejudice would have permanently barred refiling. The public record is explicit here: the order states ‘WITHOUT PREJUDICE.’ Whether a private settlement accompanied this dismissal is not disclosed in the public docket.
Refiling rights preservedDigitalDoors retains full enforcement options on all four patents
By dismissing without prejudice, DigitalDoors preserves its ability to reassert US10250639B2, US10182073B2, US9734169B2, and US9015301B2 against First Financial Bank or any other financial institution operating a Sheltered Harbor compliant system. No adverse claim construction or validity finding was entered. The four patents remain active enforcement assets.
Patents remain enforceableFirst Financial Bank avoids judgment but carries residual litigation risk
First Financial Bank secured no declaratory judgment of non-infringement or invalidity. While the immediate action is closed, the bank faces potential re-exposure if DigitalDoors refiles or pursues related actions. The cost-bearing order — each party bears its own fees — provides no fee-shifting protection. Financial institutions operating Sheltered Harbor compliant infrastructure should monitor DigitalDoors’ broader enforcement portfolio.
No invalidity finding obtainedFull party and counsel information
| Role | Name | Type | Detail |
|---|---|---|---|
| Plaintiff | DIGITALDOORS, INC. | Company | Cybersecurity patent licensing entity — holder of US10250639B2 and three related data-protection patentsSearch in Eureka ↗ |
| Defendant | First Financial Bank, National Association | Company | First Financial Bank, N.A. — regional commercial bank alleged to operate a Sheltered Harbor compliant systemSearch in Eureka ↗ |
| Plaintiff counsel | Michael Scott Fuller | Attorney | Counsel for DIGITALDOORS, INC.Search in Eureka ↗ |
| Plaintiff law firm | Garteiser Honea PLLC | Law Firm | Representing DIGITALDOORS, INC.Search in Eureka ↗ |
| Defendant counsel | Brett Christopher Govett | Attorney | Counsel for First Financial Bank, National AssociationSearch in Eureka ↗ |
| Defendant counsel | Vlada A. Wendel | Attorney | Counsel for First Financial Bank, National AssociationSearch in Eureka ↗ |
| Defendant law firm | Norton Rose Fulbright LLP | Law Firm | Representing First Financial Bank, National AssociationSearch in Eureka ↗ |
| Presiding judge | Judge N/A | Judge | Texas Eastern District CourtSearch in Eureka ↗ |
Official order — verbatim text
The court’s order is procedural rather than substantive: it accepts DigitalDoors’ Rule 41(a)(1)(A)(i) notice and dismisses all claims without prejudice. The explicit ‘WITHOUT PREJUDICE’ designation is legally significant — it extinguishes no claim and grants the defendant no preclusive benefit. The cost-bearing provision is neutral and standard for consensual dismissals at this stage. No claim construction, validity finding, or infringement determination was entered, meaning the four asserted patents emerge from this action with their enforceability entirely intact.
US10250639B2, US10182073B2, US9734169B2 & US9015301B2 — Sheltered Harbor Cybersecurity Technology
The four asserted patents — US10250639B2, US10182073B2, US9734169B2, and US9015301B2 — span two application families filed under application numbers US14/597345, US14/597314, US13/900728, and US11/746440 respectively. The portfolio covers technology associated with Sheltered Harbor compliant systems, an industry framework developed to ensure financial institutions can restore customer data after a catastrophic cyber event. The patents likely address secure data vaulting, access controls, and recovery orchestration central to this framework.
Sheltered Harbor is increasingly mandated or strongly encouraged by financial regulators and industry bodies, meaning the pool of potentially infringing financial institutions is broad and well-defined. A four-patent portfolio structured across multiple priority dates and application families is consistent with a licensing programme designed to cover both legacy implementations and newer system iterations. Any bank, credit union, or fintech operating certified Sheltered Harbor infrastructure faces meaningful FTO exposure to this portfolio regardless of the outcome of this specific case.
Should your organisation run an FTO against US10250639B2 and related patents?
If your institution operates, develops, or procures a Sheltered Harbor compliant data protection system, all four patents in DigitalDoors’ portfolio are directly relevant to your FTO analysis. The accused product category — Sheltered Harbor compliant systems — is precise enough to define a clear target class. Given that no invalidity or non-infringement finding was entered in this case, each patent remains a live enforcement risk. R&D and product security teams building or upgrading cyber-resiliency infrastructure should prioritise FTO clearance before deployment.
PatSnap Eureka’s FTO Search Agent enables you to map all four patents against your product architecture simultaneously — identifying claim elements that read on your specific implementation of data vaulting, access management, or recovery workflows. Eureka’s prior art and claim landscape tools can also flag design-around opportunities and identify whether inter partes review petitions have been or could be filed against any patent in the portfolio, giving your legal team a complete enforcement risk picture before DigitalDoors’ next filing.
Run a freedom-to-operate analysis on US10250639B2 to assess your product’s exposure
Run FTO in Eureka →Similar Cybersecurity Patent Infringement Cases in E.D. Texas
Browse related patent infringement actions involving cybersecurity and data-protection technology filed in the Eastern District of Texas federal court.
What this case signals for the financial cybersecurity IP landscape
A four-patent cybersecurity suit against a regional bank ending without prejudice is a pattern worth tracking closely across the fintech and banking sector.
Sheltered Harbor compliance creates a defined target pool for patent enforcement
DigitalDoors’ selection of a Sheltered Harbor compliant system as the accused product suggests a deliberate enforcement strategy targeting financial institutions that have adopted this industry-standard data-protection framework. Any bank or credit union certified under Sheltered Harbor should assess its exposure to this patent family before a similar action is filed.
Dismissal without prejudice keeps the E.D. Texas threat alive for the whole sector
The Eastern District of Texas remains a plaintiff-favoured venue for patent litigation. DigitalDoors’ decision to dismiss without prejudice rather than with prejudice or by settlement with disclosed terms suggests the patents are being held in reserve. IP teams at financial institutions should treat this as a monitoring trigger, not a resolution signal.
DIGITALDOORS v First — key questions answered
DigitalDoors, Inc. filed a patent infringement suit against First Financial Bank, N.A. in the Eastern District of Texas on September 25, 2024, asserting four cybersecurity patents. The case was voluntarily dismissed without prejudice on August 5, 2025, after 314 days, pursuant to Rule 41(a)(1)(A)(i). Each party bears its own costs. No merits ruling was issued.
DigitalDoors asserted US10250639B2, US10182073B2, US9734169B2, and US9015301B2 — four patents covering technology associated with Sheltered Harbor compliant data protection systems. The patents derive from application numbers US14/597345, US14/597314, US13/900728, and US11/746440 respectively.
A dismissal without prejudice means DigitalDoors retains the legal right to refile the same infringement claims against First Financial Bank in the future. No court ruling on patent validity, claim construction, or infringement was entered. This contrasts with a dismissal with prejudice, which would permanently bar refiling. The underlying patents remain enforceable assets.
The public docket does not disclose a settlement agreement. The case was dismissed voluntarily without prejudice under Rule 41(a)(1)(A)(i), with each party bearing its own costs. Whether a private licensing agreement or settlement was reached alongside the dismissal is not reflected in the public record and cannot be confirmed from available court filings.
Sheltered Harbor is a financial industry standard designed to ensure banks and credit unions can restore customer account data following a catastrophic cyber event. It involves secure data vaulting and recovery protocols. Because compliance is broadly adopted across the financial sector, patents covering Sheltered Harbor compliant systems — like those asserted by DigitalDoors — can potentially apply to a wide range of financial institutions, creating sector-wide FTO exposure.
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