Secure Mobile Transactions v. Prosperity Bank: Triple-Patent Mobile Auth Suit Ends in Dismissal With Prejudice
Secure Mobile Transactions LLC asserted three mobile payment authentication patents against Prosperity Bank and a coalition of ten Texas financial institutions over Apple Pay and debit card authentication systems. The case resolved in 176 days with plaintiff’s claims dismissed with prejudice — permanently barring re-litigation of those claims.
Ten-Bank Joint Defense Ends Mobile Auth Patent Suit Permanently
Secure Mobile Transactions LLC filed suit on April 8, 2025 in the U.S. District Court for the Eastern District of Texas before Judge Michael J. Truncale, asserting infringement of three patents — US11288647B2, US9792596B2, and US10546285B2 — all directed to mobile payment authentication technology. The named defendant was Prosperity Bank, but the docket reflects a broader consolidated action involving ten financial institutions, including Bank of Texas, Charles Schwab Bank, Comerica Bank, Frost Bank, Independent Financial, Regions Bank, and WoodForest entities.
The case closed on October 1, 2025, just 176 days after filing, via a joint motion to dismiss. The court granted dismissal with prejudice as to the plaintiff’s infringement claims — meaning Secure Mobile Transactions is permanently barred from bringing these specific claims against these defendants again. Defendants’ counterclaims and defenses were dismissed without prejudice, preserving their ability to reassert those positions if needed. Each party bears its own attorneys’ fees and costs, with no fee-shifting order entered.
A 176-day resolution in a multi-defendant patent case with three asserted patents is notably swift and is consistent with an early negotiated settlement or licensing arrangement, though the public record is silent on any financial terms. The with-prejudice dismissal of plaintiff’s claims, combined without-prejudice preservation of defendants’ counterclaims, is a characteristic asymmetric structure that typically signals the plaintiff received some consideration in exchange for the permanent relinquishment of its infringement claims. What drove the resolution — licensing, claim weakness, or litigation economics — remains undisclosed.
Filing to Case Dismissed in 176 days
176 days — faster than median patent district court resolution, suggesting early negotiated resolution
Asymmetric dismissal: what the with/without prejudice split means for both sides
Dismissal with prejudice extinguishes plaintiff’s claims permanently
A dismissal with prejudice is a final adjudication on the merits for res judicata purposes. Secure Mobile Transactions cannot refile infringement claims based on these three patents against any of the ten defendant institutions. The joint motion structure — both sides agreeing to terms — indicates this was a consensual resolution rather than a court-imposed sanction, suggesting negotiated terms exist outside the public docket.
Plaintiff claims: permanently barredPlaintiff surrenders all claims — likely in exchange for undisclosed consideration
By agreeing to dismissal with prejudice, Secure Mobile Transactions permanently waived its right to pursue these infringement claims against these ten defendants. This is an unusual concession unless offset by a licensing payment, cross-license, or other commercial arrangement. The public record discloses no financial terms. Notably, plaintiff retains the three patents and could theoretically assert them against non-party institutions not covered by this dismissal.
Claims waived; patents retainedBanks secure permanent peace on plaintiff’s claims; counterclaims preserved
The ten defendant financial institutions achieved dismissal with prejudice of all plaintiff infringement claims — the strongest available protection against re-litigation. Their own counterclaims and defenses were dismissed without prejudice, meaning those positions (which may have included invalidity arguments) remain available for future use. The no-fee-shift order means each institution absorbs its own litigation costs — a standard outcome in jointly negotiated resolutions.
Defendants: protected; counterclaims preservedThree mobile auth patents remain live — non-party banks face continued exposure
This dismissal resolves claims only against the named defendants. US11288647B2, US9792596B2, and US10546285B2 remain active and enforceable. Other financial institutions deploying Apple Pay integration or debit card authentication workflows similar to those at issue — particularly Instant Issue debit card programs — should note that Secure Mobile Transactions retains full enforcement rights against third parties. The swift resolution may signal licensing activity beyond this single action.
Patents enforceable against third partiesFull party and counsel information
| Role | Name | Type | Detail |
|---|---|---|---|
| Plaintiff | Secure Mobile Transactions LLC | Company | Mobile payment authentication patent licensing entity — holder of US11288647B2, US9792596B2, and US10546285B2Search in Eureka ↗ |
| Defendant | Prosperity Bank | Company | Texas-based regional bank; one of ten financial institution defendants in consolidated actionSearch 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 | Kelly Elizabeth Ransom | Attorney | Counsel for Prosperity BankSearch in Eureka ↗ |
| Defendant law firm | Kelly Hart & Hallman LLP (La) | Law Firm | Representing Prosperity BankSearch 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 without modification — a strong signal that both sides negotiated the precise terms presented. The with-prejudice/without-prejudice split is deliberate: plaintiff permanently surrenders infringement claims while defendants preserve optionality on counterclaims. The denial of all pending motions as moot and the explicit no-fee-shift instruction are standard in consensual resolutions. No merits ruling was issued; the patents’ validity and infringement were never adjudicated.
US11288647B2, US9792596B2 & US10546285B2 — Mobile Payment Authentication Portfolio
The three asserted patents — US11288647B2 (App. No. US16/773614), US9792596B2 (App. No. US14/249761), and US10546285B2 (App. No. US15/706361) — collectively cover systems and methods for authenticating the identity of a cardholder or mobile wallet user in the context of payment transactions with merchants. The portfolio spans application generations from the US14 to US16 series, suggesting a multi-year prosecution strategy designed to broaden claim coverage as mobile payment technology evolved. The technology domain encompasses both NFC-based mobile wallet authentication (as used in Apple Pay) and real-time card authentication for Instant Issue debit programs.
For the financial services sector, this portfolio represents a meaningful enforcement risk across commonly deployed banking infrastructure. Apple Pay integration is now standard for most retail and commercial banks, and Instant Issue debit card programs — where cards are issued and activated instantly at branches with real-time identity verification — are expanding rapidly. Any institution deploying authentication middleware that verifies cardholder identity prior to authorizing a merchant payment could fall within the claim scope of one or more of these patents. The portfolio’s multi-patent structure also complicates design-around strategies, as each patent may cover different claim elements of the same underlying authentication workflow.
Should you run an FTO against US11288647B2, US9792596B2, and US10546285B2?
Any bank, fintech, or payment processor deploying Apple Pay, Google Pay, or equivalent NFC mobile wallet integrations — or operating Instant Issue debit card programs with real-time cardholder identity verification — should conduct a freedom-to-operate analysis against this three-patent portfolio. The swift resolution of a ten-bank joint action without any invalidity ruling means all three patents remain presumptively valid and enforceable. Product teams launching or upgrading mobile authentication workflows in 2025 and beyond are in the highest-risk category.
PatSnap Eureka’s FTO Search Agent can map each claim element of US11288647B2, US9792596B2, and US10546285B2 against your product architecture, flag potential overlap, and surface relevant prior art that could support an IPR petition or design-around. The portfolio’s continuation filing history also warrants monitoring — Eureka’s patent family tracking identifies pending applications that may extend the claim footprint beyond the three currently asserted patents. Start with a claim chart analysis before deployment decisions are finalized.
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 NFC-based transaction security patents in E.D. Texas, particularly NPE enforcement actions targeting financial institutions.
What this case signals for the mobile payments IP landscape
A ten-bank joint defense resolving in under six months points to licensing activity that extends well beyond this docket.
Multi-defendant joint motions in E.D. Texas signal coordinated licensing pressure
When a plaintiff names ten financial institutions simultaneously and all parties jointly move to dismiss within 176 days, the pattern is consistent with coordinated licensing campaigns. NPEs operating in the mobile payments space frequently use multi-defendant filings to maximize settlement leverage. IP counsel at banks and fintechs should monitor Secure Mobile Transactions’ filing history across districts for similar assertion patterns.
Apple Pay integration and Instant Issue debit programs are active assertion targets
The products at issue — Apple Pay TM and Instant Issue Mastercard Debit Card authentication workflows — represent broadly deployed banking infrastructure. Any financial institution or payment processor using NFC-based mobile authentication or real-time card issuance with identity verification should assess exposure to the three asserted patents before Secure Mobile Transactions initiates further enforcement actions.
Secure v Prosperity — key questions answered
The case was dismissed with prejudice as to plaintiff Secure Mobile Transactions LLC’s infringement claims and without prejudice as to defendants’ counterclaims. Filed April 8, 2025, in E.D. Texas, the joint motion to dismiss was granted by Judge Truncale on October 1, 2025 — 176 days after filing. No merits ruling was issued and each party bears its own costs.
Secure Mobile Transactions asserted three patents: US11288647B2 (App. No. US16/773614), US9792596B2 (App. No. US14/249761), and US10546285B2 (App. No. US15/706361). All three cover mobile payment authentication technology, including identity verification systems used in Apple Pay integrations and Instant Issue Mastercard Debit Card programs.
Dismissal with prejudice is a final, permanent termination of the plaintiff’s infringement claims. Secure Mobile Transactions cannot refile the same claims against the ten named defendant institutions. However, the three patents remain valid and enforceable against third parties not covered by this dismissal, meaning other financial institutions may still face assertion risk.
Yes. The joint motion covered all defendants in the consolidated action: Bank of Texas (BOKF), Charles Schwab Bank, Comerica Bank, Frost Bank, Independent Financial (SouthState Bank), Prosperity Bank, Regions Bank, WoodForest Financial Group, WoodForest Financial Services, and WoodForest National Bank. All plaintiff claims against all ten institutions were dismissed with prejudice.
The accused products included Apple Pay TM as deployed by defendant financial institutions, and debit and/or credit card programs — specifically the Instant Issue Mastercard Debit Card — used with authentication systems that verify the identity of a cardholder in a request to pay a merchant for a transaction. These are broadly deployed banking products, suggesting potential exposure for other institutions using similar infrastructure.
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