Dynapass IP Holdings v. Simmons Bank — Dismissed With Prejudice After 465 Days
Dynapass IP Holdings, LLC asserted US6993658B1 — a patent covering user authentication via personal communication devices — against Simmons First National Corporation and Simmons Bank in the Eastern District of Texas. The parties jointly resolved the dispute and obtained a dismissal with prejudice of Dynapass’s claims, with Simmons’ counterclaims preserved without prejudice, after 465 days of litigation.
Authentication patent dispute resolved jointly after 15 months in E.D. Texas
Dynapass IP Holdings, LLC filed this infringement action on 20 February 2023 in the Eastern District of Texas against Simmons First National Corporation and its subsidiary Simmons Bank, asserting US6993658B1, a patent directed to the use of personal communication devices for user authentication. The case is a member case in a coordinated docket, with lead case 2:23-cv-00063-JRG-RSP remaining open, suggesting Dynapass pursued a parallel multi-defendant campaign targeting financial institutions’ authentication systems.
After 465 days, the parties filed a Joint Motion to Dismiss representing that the case had been resolved. The court granted the motion, dismissing Dynapass’s claims against Simmons with prejudice — extinguishing any right to re-file those same claims — while preserving Simmons’ counterclaims without prejudice. Each party was ordered to bear its own fees and costs, which is consistent with a negotiated resolution rather than a court-ordered fee award. The precise financial or licensing terms of the resolution are not disclosed in the public record.
The 465-day duration and the with-prejudice dismissal of plaintiff’s claims, combined with counterclaims preserved without prejudice, suggests the parties reached a settlement but structured the dismissal to protect Simmons’ ability to pursue its counterclaims in future proceedings if needed. The existence of a lead case (2:23-cv-00063) indicates this was one of several coordinated actions by Dynapass, a pattern typically associated with patent assertion entity activity in the financial technology authentication space. The terms of any licence or payment remain confidential.
Filing to Case Dismissed in 465 days
465 days — above median for E.D. Texas patent cases resolved pre-trial
Mixed-prejudice dismissal: what the split terms mean for both parties
With-prejudice dismissal bars Dynapass from re-filing these claims
A dismissal with prejudice operates as a final adjudication on the merits under federal procedural rules. Dynapass cannot re-assert the same claims under US6993658B1 against Simmons or Simmons Bank in any future action. This is the strongest form of claim resolution short of a full trial verdict, and is typically the condition a defendant extracts in exchange for a settlement payment or licence grant.
Claim extinguishedSimmons’ counterclaims survive — dismissed without prejudice
Simmons’ counterclaims — likely including invalidity and potentially non-infringement declaratory relief — were dismissed without prejudice, meaning Simmons retains the ability to revive them if circumstances warrant. This asymmetric structure is commercially significant: it suggests Simmons negotiated to keep its defensive arsenal available, potentially as leverage against future assertions by Dynapass or related entities holding related authentication patents.
Defensive optionality retainedDynapass closes this action but lead case 2:23-cv-00063 continues
While Dynapass’s claims against Simmons are permanently closed, the court order explicitly directs that lead case 2:23-cv-00063-JRG-RSP remain open. This is consistent with a coordinated multi-defendant patent assertion campaign. Dynapass’s strategic position depends on outcomes in remaining actions, and a with-prejudice resolution here — without a public admission of invalidity — preserves some assertion value in the broader campaign.
Campaign continuesFee neutrality signals negotiated exit, not litigation defeat
The order that each party bear its own costs and attorneys’ fees is a strong indicator of a consensual settlement rather than a forced concession. Had Simmons defeated Dynapass on the merits or obtained an exceptional-case finding, fee-shifting would likely have followed. The neutral fee allocation suggests both parties found a commercially acceptable resolution, though the absence of a public licence record leaves the financial terms opaque.
Likely settledFull party and counsel information
| Role | Name | Type | Detail |
|---|---|---|---|
| Plaintiff | Dynapass IP Holdings, LLC | Company | Patent assertion entity — holder of US6993658B1 covering personal device authenticationSearch in Eureka ↗ |
| Defendant | Simmons First National Corporation | Company | Simmons First National Corporation and subsidiary Simmons Bank — regional banking groupSearch in Eureka ↗ |
| Co-Defendant | Simmons Bank | Company | Search in Eureka ↗ |
| Plaintiff counsel | Fred Irvin Williams | Attorney | Counsel for Dynapass IP Holdings, LLCSearch in Eureka ↗ |
| Plaintiff law firm | Williams, Simons & Landis PLLC (Austin) | Law Firm | Representing Dynapass IP Holdings, LLCSearch in Eureka ↗ |
| Defendant counsel | Jason Dwain Mazingo | Attorney | Counsel for Simmons First National CorporationSearch in Eureka ↗ |
| Defendant counsel | LaTasha Mabry Snipes | Attorney | Counsel for Simmons First National CorporationSearch in Eureka ↗ |
| Defendant law firm | Polsinelli PC – Houston | Law Firm | Representing Simmons First National CorporationSearch in Eureka ↗ |
| Defendant law firm | The Mazingo Firm PC | Law Firm | Representing Simmons First National CorporationSearch in Eureka ↗ |
| Presiding judge | Judge N/A | Judge | Texas Eastern District CourtSearch in Eureka ↗ |
Official order — verbatim text
The court’s order reflects a textbook mixed-prejudice joint dismissal structure. Dynapass’s infringement claims are extinguished with prejudice — carrying res judicata effect against re-filing identical claims against these defendants. Simmons’ counterclaims are preserved without prejudice, retaining future optionality. The fee-neutrality clause and the explicit instruction to maintain the lead case as open confirm this is a member-case resolution within a broader coordinated docket, not a full programme-ending settlement.
US6993658B1 — Personal Communication Device User Authentication
US6993658B1 (application number US09/519829) is directed to the use of personal communication devices — such as mobile phones or handheld devices — as a mechanism for user authentication. The patent’s filing date places it in the early era of mobile authentication technology, predating widespread smartphone adoption. Its claims likely cover methods and systems whereby a personal device participates in verifying user identity, a technical domain that underpins modern two-factor authentication, mobile banking login, and secure transaction verification workflows.
In the financial services sector, personal device authentication is now foundational infrastructure. A patent with broad claims in this space, filed when the technology was nascent, could read on contemporary mobile banking authentication implementations. Dynapass’s decision to target regional banking groups like Simmons suggests the patent’s claim scope is being interpreted broadly enough to cover standard mobile or device-based login flows. Any institution deploying SMS OTP, push notification authentication, or device-binding for customer-facing or employee authentication should assess exposure.
Should your team run an FTO against US6993658B1?
If your organisation operates mobile banking apps, device-based two-factor authentication, or any personal communication device login flow for financial services, US6993658B1 warrants a freedom-to-operate review. The patent has been asserted against at least one regional bank in a coordinated multi-defendant campaign, and the lead case in this docket remains open. The absence of a public validity ruling from this proceeding means the patent retains its presumption of validity.
PatSnap Eureka’s FTO Search Agent can map your authentication product architecture against the claim language of US6993658B1, identify prior art that could support an IPR petition, and flag related continuations or family members in Dynapass’s portfolio. Proactive FTO analysis now is substantially less costly than responding to an infringement complaint in E.D. Texas — a jurisdiction known for plaintiff-friendly patent dockets.
Run a freedom-to-operate analysis on US6993658B1 to assess your product’s exposure
Run FTO in Eureka →Similar authentication patent cases in E.D. Texas financial services litigation
Explore coordinated patent assertion campaigns targeting financial institutions over mobile and personal device authentication technology in the Eastern District of Texas.
What this case signals for the financial authentication IP landscape
Dynapass’s coordinated E.D. Texas campaign against banking institutions highlights growing assertion risk around legacy authentication patents.
PAE authentication campaigns target financial institutions systematically
The member/lead case structure in this docket is characteristic of patent assertion entity campaigns that file coordinated actions against multiple defendants in E.D. Texas. Financial institutions using personal device or mobile authentication should monitor US6993658B1 and related portfolio patents closely, as the lead case remains active and further assertions are plausible.
With-prejudice resolution offers no public validity ruling on US6993658B1
Because the case ended by joint dismissal rather than a merits ruling, the validity and enforceability of US6993658B1 has not been judicially tested in this action. Any institution considering reliance on this outcome as a validity signal should be cautious — the patent’s claims remain unchallenged on the public record from this proceeding.
Dynapass v Simmons — key questions answered
The case was dismissed with prejudice as to Dynapass’s infringement claims against Simmons First National Corporation and Simmons Bank, and without prejudice as to Simmons’ counterclaims, following a joint motion representing the matter had been resolved. Each party bears its own costs and fees. The case closed on 30 May 2024 after 465 days.
Dynapass asserted US6993658B1, a patent directed to the use of personal communication devices for user authentication. The application number is US09/519829. The patent covers authentication methods and systems using personal devices, which is directly relevant to mobile banking and two-factor authentication deployments.
A dismissal with prejudice is a final, binding resolution that bars Dynapass from re-filing the same infringement claims against Simmons First National Corporation or Simmons Bank in any future action. It carries the same preclusive effect as a judgment on the merits, making it the strongest outcome Simmons could obtain short of a full trial victory.
Dismissal without prejudice of Simmons’ counterclaims preserves Simmons’ ability to revive those claims — likely invalidity and/or declaratory non-infringement — if needed in future proceedings. This asymmetric structure is consistent with a negotiated settlement in which Simmons retained defensive optionality as a condition of resolving Dynapass’s infringement claims permanently.
The court order in this member case (2:23-cv-00068) explicitly directs that lead case 2:23-cv-00063-JRG-RSP be maintained as open, indicating Dynapass is pursuing at least one other defendant in a coordinated campaign in E.D. Texas over the same US6993658B1 patent. Financial institutions with personal device authentication systems should monitor that docket.
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