Digital Doors v. Capital One: Cybersecurity Patent Suit Dismissed With Prejudice
Digital Doors, Inc. filed suit against Capital One Financial Corp. and Capital One, N.A. in the Eastern District of Texas, asserting four patents covering data vaulting, resiliency planning, and certification controls for financial-grade cybersecurity. The case closed after 363 days via a stipulated dismissal with prejudice — each party bearing its own costs.
A financial-sector cybersecurity patent dispute resolved by stipulation before trial
On November 21, 2023, Digital Doors, Inc. filed a patent infringement action against Capital One Financial Corp. and its banking subsidiary Capital One, N.A. in the Eastern District of Texas (Case No. 2:23-cv-00546). The suit asserted four U.S. patents — US10250639B2, US10182073B2, US9734169B2, and US9015301B2 — covering cybersecurity technologies including data vaulting, resiliency planning, and certification quality-assurance mechanisms. The accused products centred on Capital One’s internal controls and processes for protecting critical customer data, areas of significant strategic importance to the financial services industry.
The case closed on November 18, 2024 — exactly 363 days after filing — when the parties filed a Stipulated Motion for Dismissal with Prejudice under Rule 41(a)(1). The court accepted the stipulation and dismissed all claims that were or could have been asserted in member case No. 2:23-cv-00546 with prejudice. Critically, each party was ordered to bear its own costs, expenses, and attorneys’ fees, suggesting no clear winner imposed cost terms on the other. The lead case, No. 2:23-cv-00541, was ordered to remain open, indicating related proceedings against other defendants may continue.
A dismissal with prejudice just short of the one-year mark is consistent with a negotiated resolution — whether a confidential settlement, licensing agreement, or strategic withdrawal — though the public record does not confirm the specific commercial terms. The mutual cost-bearing arrangement and the presence of a related lead case suggest Digital Doors may have been pursuing a multi-defendant litigation campaign in E.D. Texas. What drove the resolution of this specific member case, and whether Digital Doors achieved any licensing value, remains undisclosed.
Filing to Dismissed with Prejudice in 363 days
363-day lifespan — resolved before trial, consistent with pre-litigation settlement timelines in E.D. Texas patent cases
Dismissed with prejudice: what the stipulated order means for both parties
Rule 41(a)(1) dismissal with prejudice — a permanent bar on re-filing
Under Rule 41(a)(1), parties may jointly stipulate to dismiss an action. When entered with prejudice, the dismissal operates as a final adjudication on the merits — Digital Doors is permanently barred from reasserting these four patents against Capital One, N.A. on the same claims in any future action. The court’s role was limited to accepting and acknowledging the stipulation; no merits ruling was made.
Permanent claim barDigital Doors relinquishes all claims against Capital One, N.A. permanently
A with-prejudice dismissal is the most restrictive outcome for a patent plaintiff — Digital Doors cannot revive these specific claims against Capital One, N.A. in any later proceeding. However, the lead case (No. 2:23-cv-00541) remains open, suggesting Digital Doors retains live claims against other defendants. Whether any undisclosed licensing value was extracted from Capital One before dismissal cannot be confirmed from the public docket.
Claims extinguished vs. this defendantCapital One secures a permanent shield on these four patents
For Capital One, N.A., the with-prejudice dismissal provides the strongest available protection short of invalidity: Digital Doors cannot sue on US10250639B2, US10182073B2, US9734169B2, or US9015301B2 against this entity again. The mutual cost-bearing order means Capital One avoided a fee-shifting award under 35 U.S.C. § 285, which would have required a finding of an ‘exceptional case.’ McGuireWoods LLP represented Capital One across multiple offices.
Full immunity on asserted patentsRelated lead case open — Digital Doors’ campaign may target other banks
The court’s instruction to maintain lead case No. 2:23-cv-00541 as open is a material signal: Digital Doors appears to be running a coordinated multi-defendant litigation strategy in E.D. Texas covering cybersecurity IP in financial services. Other financial institutions using analogous data vaulting, resiliency planning, or certification control architectures should monitor this patent family closely and evaluate their freedom-to-operate position.
Multi-defendant risk in financial sectorFull party and counsel information
| Role | Name | Type | Detail |
|---|---|---|---|
| Plaintiff | Digital Doors, Inc. | Company | Cybersecurity patent assertion entity — holder of US10250639B2, US10182073B2, US9734169B2, US9015301B2Search in Eureka ↗ |
| Defendant | Capital One Financial, Corp. | Company | Capital One Financial Corp. and subsidiary Capital One, N.A. — U.S. top-10 bank and major digital financial services providerSearch in Eureka ↗ |
| Co-Defendant | Capital One, N.A. | Individual | Search in Eureka ↗ |
| Plaintiff counsel | Michael Scott Fuller | Attorney | Counsel for Digital Doors, Inc.Search in Eureka ↗ |
| Plaintiff law firm | Garteiser Honea PLLC | Law Firm | Representing Digital Doors, Inc.Search in Eureka ↗ |
| Defendant counsel | Corinne Stone Hockman | Attorney | Counsel for Capital One Financial, Corp.Search in Eureka ↗ |
| Defendant counsel | David E. Finkelson | Attorney | Counsel for Capital One Financial, Corp.Search in Eureka ↗ |
| Defendant counsel | Jason Woodard Cook | Attorney | Counsel for Capital One Financial, Corp.Search in Eureka ↗ |
| Defendant counsel | Matthew William Cornelia | Attorney | Counsel for Capital One Financial, Corp.Search in Eureka ↗ |
| Defendant law firm | McGuireWoods LLP | Law Firm | Representing Capital One Financial, Corp.Search in Eureka ↗ |
| Defendant law firm | McGuireWoods LLP (Houston) | Law Firm | Representing Capital One Financial, Corp.Search in Eureka ↗ |
| Defendant law firm | McGuireWoods LLP – Richmond | Law Firm | Representing Capital One Financial, Corp.Search in Eureka ↗ |
| Presiding judge | Judge N/A | Judge | Texas Eastern District CourtSearch in Eureka ↗ |
Official order — verbatim text
The court’s order accepts the parties’ joint stipulation without making any finding on the merits of infringement, validity, or damages. The with-prejudice qualifier is legally significant: it extinguishes Digital Doors’ ability to reassert these four patents against Capital One, N.A. in any future proceeding, effectively functioning as a final judgment. The instruction to close this member case while maintaining lead case No. 2:23-cv-00541 as open is consistent with a coordinated multi-defendant docket structure common in E.D. Texas patent campaigns.
US10250639B2, US10182073B2, US9734169B2 & US9015301B2 — Financial Cybersecurity Portfolio
The four asserted patents — US10250639B2, US10182073B2, US9734169B2, and US9015301B2 — cover a portfolio of cybersecurity technologies specifically relevant to financial services infrastructure. Two patents originate from application series 14/597xxx and two from earlier priority chains (13/900728 and 11/746440), suggesting a deliberate multi-generation prosecution strategy. The technology domains span data vaulting (protection, portability, and recovery of critical data sets), resiliency planning (business and technical processes for continuity when standard disaster recovery fails), and certification mechanisms (quality assurance controls, independent audits, and management assertions).
For financial institutions, these patent claims are commercially sensitive: data vaulting and resiliency planning are regulatory expectations under frameworks such as FFIEC guidelines and DORA in Europe, meaning the underlying technologies are deeply embedded in bank IT architecture. An assertion against Capital One — one of the largest digital-first banks in the U.S. — signals that Digital Doors views major financial institutions’ standard operational security infrastructure as potentially within scope. The continued existence of the lead case suggests this portfolio may be actively wielded against additional defendants operating comparable systems.
Should your organisation run an FTO against the Digital Doors cybersecurity patent family?
Any financial institution, fintech, or managed security service provider operating data vaulting, business continuity, or IT certification control systems should treat this patent family as a live risk. The fact that Digital Doors filed against Capital One — a defendant with substantial IP litigation resources — and secured a with-prejudice dismissal without a finding of non-infringement or invalidity means the patents survived this dispute legally intact. Organisations deploying analogous architectures, particularly in regulated financial services environments, should consider a targeted FTO review.
PatSnap Eureka’s FTO Search Agent allows IP and R&D teams to map claim language from US10250639B2, US10182073B2, US9734169B2, and US9015301B2 against your specific product architecture — identifying potential overlap with data vaulting workflows, resiliency planning modules, and certification control pipelines. Eureka can also surface the full claim dependency tree and identify prior art that could support a validity challenge if needed.
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 financial services
Explore related cybersecurity and data security patent assertion cases filed in the Eastern District of Texas against financial services defendants — the same court and technology domain as this Digital Doors action.
What this case signals for the financial-sector cybersecurity IP landscape
Digital Doors’ multi-patent campaign in E.D. Texas highlights rising assertion risk for banks and fintechs operating data protection and resiliency infrastructure.
E.D. Texas remains a preferred forum for cybersecurity patent assertion against banks
The Eastern District of Texas continues to attract multi-defendant patent campaigns targeting financial services firms. Any institution operating data vaulting, incident response, or certification control systems should proactively audit their exposure to the Digital Doors patent family — particularly given the lead case remains active.
With-prejudice dismissal protects Capital One but does not invalidate the patents
The stipulated dismissal resolves claims only between these parties. The four asserted patents — US10250639B2, US10182073B2, US9734169B2, and US9015301B2 — remain in force and can be asserted against other defendants. Competitors and adjacent financial technology providers should not treat this outcome as a clearance of the IP.
Digital v Capital — key questions answered
A dismissal with prejudice under Rule 41(a)(1) permanently bars Digital Doors from reasserting the four patents — US10250639B2, US10182073B2, US9734169B2, and US9015301B2 — against Capital One, N.A. in any future proceeding. It operates as a final adjudication on the merits for this defendant only. The patents remain valid and enforceable against other parties.
The court’s instruction to maintain lead case No. 2:23-cv-00541 as open while closing member case No. 2:23-cv-00546 is consistent with a multi-defendant litigation structure common in E.D. Texas. In such campaigns, a single lead case coordinates pretrial proceedings for multiple member cases filed against different defendants. The dismissal of the Capital One member case does not resolve claims against other defendants named in the lead case.
The four asserted patents cover three primary technology domains: (1) data vaulting — protection, portability, and recovery standards for critical data sets; (2) resiliency planning — business and technical processes, incident response communications, and continuity arrangements when standard disaster recovery fails; and (3) certification quality assurance — requisite controls, processes, independent audits, and management assertions for financial-grade security.
The case was not decided on the merits. The parties filed a joint stipulation for dismissal with prejudice, which the court accepted. No findings were made on infringement, validity, or damages. Capital One benefits from a permanent claim bar, but the absence of a merits ruling means no invalidity precedent was established — the patents remain in force against other defendants.
Digital Doors was represented by Michael Scott Fuller of Garteiser Honea PLLC, a Texas-based firm known for patent assertion litigation in E.D. Texas. Capital One was represented by Corinne Stone Hockman, David E. Finkelson, Jason Woodard Cook, and Matthew William Cornelia of McGuireWoods LLP, with attorneys across the firm’s Houston and Richmond offices.
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