Secure Mobile Transactions LLC v. Bank of Texas — Dismissed With Prejudice After 176 Days
Secure Mobile Transactions LLC asserted three mobile payment authentication patents against Bank of Texas and a coalition of regional U.S. banks in the Eastern District of Texas. The case resolved in 176 days via a joint motion to dismiss — plaintiff’s claims extinguished with prejudice, while defendants’ counterclaims were preserved without prejudice.
A multi-bank settlement ends a mobile authentication patent campaign in E.D. Texas
Filed on 8 April 2025 before Judge Michael J. Truncale in the Eastern District of Texas, this infringement action saw Secure Mobile Transactions LLC assert three patents — US11288647B2, US9792596B2, and US10546285B2 — against Bank of Texas and a broad coalition of regional financial institutions, including Charles Schwab Bank, Comerica Bank, Frost Bank, Independent Bank, Prosperity Bank, Regions Bank, and the WoodForest banking group. The accused products centred on debit card authentication systems used to verify cardholder identity in payment transactions.
The case closed on 1 October 2025 via a joint motion to dismiss (Dkt. 47), which the court granted in full. Plaintiff’s claims for relief were dismissed with prejudice — meaning they cannot be re-filed — while defendants’ counterclaims and defences were dismissed without prejudice, preserving their ability to pursue those claims in a future proceeding. The court denied all other pending motions as moot and ordered each party to bear its own attorneys’ fees and costs, consistent with a negotiated exit rather than a litigated outcome.
A resolution in 176 days is notably swift for a multi-defendant patent case in E.D. Texas, suggesting that settlement discussions progressed in parallel with early litigation activity. The with-prejudice dismissal of plaintiff’s claims is commercially significant: it forecloses re-assertion of these three patents against these specific defendants. The financial terms of any underlying agreement, if one exists, remain undisclosed on the public docket.
Filing to Case Dismissed in 176 days
176 days — resolved well under the typical 2–3 year E.D. Texas patent trial cycle
Dismissed with prejudice: what the joint motion terms mean for each party
With-prejudice dismissal permanently bars re-assertion against these defendants
A dismissal with prejudice under Federal Rule of Civil Procedure 41 operates as a final adjudication on the merits for res judicata purposes. Secure Mobile Transactions LLC cannot re-file infringement claims on these three patents against any of the named bank defendants in any federal court. This is the most restrictive outcome a plaintiff can agree to, and typically reflects either a settlement payment, a licence, or a strategic decision to abandon the campaign against this defendant group.
Rule 41 — permanent bar on re-filingPlaintiff’s claims permanently extinguished — likely a negotiated exit
Agreeing to a with-prejudice dismissal is an unusual concession for a patent plaintiff unless value was exchanged privately. The public record does not disclose any financial terms, licence grants, or covenant-not-to-sue agreements. The asymmetric structure — plaintiff’s claims dismissed with prejudice, defendants’ counterclaims dismissed without prejudice — suggests the terms were negotiated to favour the defendant coalition’s litigation posture on validity and unenforceability defences.
Claims extinguished — terms undisclosedDefendants exit cleanly; counterclaims preserved for future use
The without-prejudice dismissal of defendants’ counterclaims — which typically include invalidity and unenforceability challenges — preserves their optionality. Should Secure Mobile Transactions assert the same patents against other parties or in other contexts, these defendants could theoretically revive or share their invalidity arguments. The without-prejudice structure suggests defendants were unwilling to permanently waive their right to challenge patent validity, which is consistent with a negotiated compromise.
Counterclaims preserved — no fee awardThree authentication patents remain live — exposure for non-settling banks
The dismissal resolves claims only against the named defendants. US11288647B2, US9792596B2, and US10546285B2 remain issued and enforceable patents. Financial institutions not party to this action — particularly those operating debit card authentication or cardholder identity verification systems — retain infringement exposure. The rapid multi-bank resolution may signal that the patent holder is actively licensing across the sector, making FTO analysis against these patents commercially material for regional and community banks.
Patents remain enforceable — sector-wide FTO riskFull party and counsel information
| Role | Name | Type | Detail |
|---|---|---|---|
| Plaintiff | Secure Mobile Transactions LLC | Company | Mobile payment authentication NPE — holder of US11288647B2, US9792596B2, and US10546285B2Search in Eureka ↗ |
| Defendant | Bank of Texas, a Division of BOFK, N.A. | Company | Regional U.S. bank and division of BOKF N.A. — accused of infringing debit card authentication patentsSearch in Eureka ↗ |
| Plaintiff counsel | Hannah D. Price | Attorney | Counsel for Secure Mobile Transactions LLCSearch in Eureka ↗ |
| Plaintiff counsel | Larry Dean Thompson , Jr. | Attorney | Counsel for Secure Mobile Transactions LLCSearch in Eureka ↗ |
| Plaintiff counsel | Matthew J. Antonelli | Attorney | Counsel for Secure Mobile Transactions LLCSearch in Eureka ↗ |
| Plaintiff counsel | Rehan Mohammed Safiullah | Attorney | Counsel for Secure Mobile Transactions LLCSearch in Eureka ↗ |
| Plaintiff counsel | Zachariah Harrington | Attorney | Counsel for Secure Mobile Transactions LLCSearch in Eureka ↗ |
| Plaintiff law firm | Antonelli, Harrington & Thompson, LLP | Law Firm | Representing Secure Mobile Transactions LLCSearch in Eureka ↗ |
| Defendant counsel | David Wayne Leimbach | Attorney | Counsel for Bank of Texas, a Division of BOFK, N.A.Search in Eureka ↗ |
| Defendant counsel | Michael Charles Smith | Attorney | Counsel for Bank of Texas, a Division of BOFK, N.A.Search in Eureka ↗ |
| Defendant counsel | Paige S. Stradley | Attorney | Counsel for Bank of Texas, a Division of BOFK, N.A.Search in Eureka ↗ |
| Defendant counsel | Penina Michlin | Attorney | Counsel for Bank of Texas, a Division of BOFK, N.A.Search in Eureka ↗ |
| Defendant counsel | Rachel Zimmerman Scobie | Attorney | Counsel for Bank of Texas, a Division of BOFK, N.A.Search in Eureka ↗ |
| Defendant law firm | Frederic Dorwart Lawyers PLLC | Law Firm | Representing Bank of Texas, a Division of BOFK, N.A.Search in Eureka ↗ |
| Defendant law firm | Merchant & Gould PC (Minneapolis) | Law Firm | Representing Bank of Texas, a Division of BOFK, N.A.Search in Eureka ↗ |
| Defendant law firm | Scheef & Stone LLP (Marshall) | Law Firm | Representing Bank of Texas, a Division of BOFK, N.A.Search in Eureka ↗ |
| Presiding judge | Judge Michael J. Truncale | Judge | Texas Eastern District CourtSearch in Eureka ↗ |
Official order — verbatim text
The court’s order adopts the joint motion’s asymmetric structure verbatim: plaintiff’s claims dismissed with prejudice, defendants’ counterclaims dismissed without prejudice, with each party bearing its own costs. The absence of any fee award under 35 U.S.C. § 285 — which requires a finding of an ‘exceptional case’ — is consistent with a consensual exit rather than a litigated determination of frivolousness or bad faith. The denial of all pending motions as moot confirms no substantive merits rulings were issued, leaving the patents’ validity and infringement scope entirely unresolved on the public record.
US11288647B2, US9792596B2 & US10546285B2 — Debit Card Authentication Systems
The three asserted patents — US11288647B2 (Application No. 16/773614), US9792596B2 (Application No. 14/249761), and US10546285B2 (Application No. 15/706361) — form a patent family directed at authenticating the identity of a cardholder during a debit card payment request to a merchant. The application sequence spans multiple filing dates, suggesting a continuation or continuation-in-part strategy designed to extend prosecution and capture evolving authentication architectures as the mobile payments ecosystem developed. The technical domain sits at the intersection of mobile authentication, payment network security, and identity verification.
This patent family is commercially significant because debit card authentication — including out-of-band identity verification triggered by a payment event — is now embedded in the transaction infrastructure of virtually every U.S. retail bank. The fact that nine major regional financial institutions were named as defendants in a single action underscores the breadth of the asserted claims. For financial institutions operating real-time card authentication systems, step-up authentication flows, or mobile app-based transaction approval, these patents represent a material FTO consideration that warrants independent claim-level analysis.
Should your bank run an FTO analysis against US11288647B2, US9792596B2, and US10546285B2?
Any financial institution operating a debit card programme with cardholder identity authentication — including mobile push notifications, SMS-based step-up verification, or app-based transaction approval workflows — should treat these three patents as live FTO risks. The with-prejudice dismissal protects only the nine named defendants. Non-party regional banks, credit unions, fintech payment processors, and card network participants remain fully exposed. Given the continuation family structure, claim scope may extend across both legacy and modern authentication implementations.
PatSnap Eureka’s FTO Search Agent can map the claim language of US11288647B2, US9792596B2, and US10546285B2 against your specific authentication architecture — identifying overlap with independent claims, flagging prosecution history estoppel, and surfacing prior art that the defendant coalition may have already developed. Eureka’s patent analytics also allow you to monitor Secure Mobile Transactions LLC’s litigation activity and any continuation applications still pending in prosecution, giving your legal and product teams early warning of expanded claim scope.
Run a freedom-to-operate analysis on US11288647B2 to assess your product’s exposure
Run FTO in Eureka →Similar mobile payment authentication patent cases in E.D. Texas
Cases involving mobile payment authentication and debit card identity verification patents litigated in the Eastern District of Texas against U.S. financial institutions.
What this case signals for the mobile payment authentication IP landscape
A swift multi-bank dismissal with prejudice in E.D. Texas suggests an organised licensing campaign — and unresolved exposure for non-settling institutions.
Multi-defendant bank coalitions can accelerate resolution in NPE campaigns
The presence of nine defendant banking institutions in a single action — from Comerica to WoodForest — created collective negotiating leverage. Joint defence groups routinely pool resources, share invalidity arguments, and apply coordinated settlement pressure. The 176-day resolution is consistent with a pre-litigation or early-stage settlement reached across the coalition simultaneously, limiting per-party exposure.
With-prejudice dismissals signal finality — but patents stay live for others
Non-party banks should not interpret this dismissal as a signal that these patents lack merit. The with-prejudice bar applies only to the named defendants. Secure Mobile Transactions retains full enforcement rights against any institution not covered by this order. Regional financial institutions operating debit card identity verification workflows should assess whether their authentication architectures fall within the claims of US11288647B2, US9792596B2, or US10546285B2.
Secure v Bank — key questions answered
Secure Mobile Transactions LLC asserted three patents: US11288647B2, US9792596B2, and US10546285B2. All three relate to systems and methods for authenticating the identity of a debit cardholder during a payment transaction. The accused products were Bank of Texas debit card authentication systems used to verify cardholder identity in merchant payment requests.
The asymmetric structure reflects the parties’ negotiated terms. A with-prejudice dismissal of plaintiff’s claims permanently bars Secure Mobile Transactions from re-asserting these patents against the named defendants. The without-prejudice dismissal of defendants’ counterclaims — typically invalidity and unenforceability challenges — preserves defendants’ right to raise those arguments in a future proceeding. This structure is consistent with a settlement in which defendants secured a permanent release from infringement liability while retaining their defensive patent positions.
No. The with-prejudice dismissal of plaintiff’s claims applies only to the nine named defendants: Bank of Texas (BOKF N.A.), Charles Schwab Bank, Comerica Bank, Frost Bank, Independent Bank, Prosperity Bank, Regions Bank, WoodForest Financial Group, WoodForest Financial Services, and WoodForest National Bank. All other financial institutions remain subject to potential infringement claims under US11288647B2, US9792596B2, and US10546285B2, which remain issued and enforceable.
No. The court ordered that all attorneys’ fees and costs be borne by the party incurring them, which is the default rule under Federal Rule of Civil Procedure 54(d) and American Rule practice. No exceptional case finding under 35 U.S.C. § 285 was made. This outcome is typical of consensual dismissals where neither party litigated to a merits determination, and no finding of frivolous assertion or bad faith was required.
The case was filed on 8 April 2025 and closed on 1 October 2025 — a duration of 176 days. This is notably fast for a multi-defendant patent infringement action in the Eastern District of Texas, where patent cases typically take two to three years to reach trial. The rapid resolution is consistent with parallel settlement negotiations among the nine defendant institutions, suggesting an organised joint defence effort that accelerated the exit.
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