A patent infringement action brought by Dynapass IP Holdings, LLC against The Charles Schwab Corporation and Charles Schwab Bank, SSB in the U.S. District Court for the Eastern District of Texas has concluded with a joint dismissal with prejudice after 520 days of litigation. Filed on February 20, 2023, and closed on July 24, 2024, the case centered on U.S. Patent No. 6,993,658 B1, which covers the use of personal communication devices for user authentication. The parties jointly moved for dismissal, with each side bearing its own costs, attorneys’ fees, and expenses — a resolution strongly indicative of a confidential settlement.

This outcome carries significant strategic weight for IP professionals and fintech companies operating in the digital authentication space. Patent assertion entities targeting financial institutions over foundational authentication technologies remain an active threat, and the terms of this resolution — including the with-prejudice dismissal and mutual cost-bearing — offer important signals for how defendants in similar cases can structure favorable exits. R&D teams building or procuring authentication systems should treat this case as a prompt to review freedom-to-operate exposure under legacy communication-device authentication patents.

Case Overview

The Parties

The Patent at Issue

U.S. Patent No. 6,993,658 B1 covers methods and systems for authenticating users through their personal communication devices — such as mobile phones or similar portable devices — as a security credential or token. The patent’s key claims relate to leveraging device-specific identifiers or communication channels to verify a user’s identity before granting access to protected resources or accounts. In real-world terms, this covers foundational concepts underlying two-factor authentication (2FA) and mobile-based login verification widely used across banking, brokerage, and digital services platforms.

• • US6993658B1

Legal Representation

Plaintiff Counsel: Williams, Simons & Landis PLLC (Austin) (lead: Fred Irvin Williams)
Defendant Counsel: Gillam & Smith, LLP; Greenberg Traurig LLP (New York); Greenberg Traurig LLP (San Francisco); Greenberg Traurig LLP (lead: Aimee Marie Housinger)

Litigation Timeline & Procedural History

The case was filed on February 20, 2023, in the U.S. District Court for the Eastern District of Texas — a venue with a well-established reputation for patent litigation and a historically plaintiff-friendly procedural environment that frequently attracts patent assertion entities. As a first-instance district court proceeding, this was the primary trial-level forum where all factual and claim construction disputes would have been adjudicated absent settlement, and where discovery obligations are most intensive for defendants.

The case ran for 520 days before closing on July 24, 2024 — a duration consistent with active litigation through at least some pretrial phases, including likely claim construction and fact discovery. The case was resolved not through a full trial or summary judgment but via a Joint Motion to Dismiss filed by both parties (Dkt. No. 201), resulting in dismissal with prejudice. The mutual cost-bearing provision and the with-prejudice nature of the dismissal are classic hallmarks of a confidential settlement agreement, where the plaintiff received some form of consideration in exchange for releasing all claims permanently against these defendants.

The Verdict & Legal Analysis

Outcome

The Court granted the parties’ Joint Motion to Dismiss and ordered all claims and causes of action between Dynapass IP Holdings, LLC and The Charles Schwab Corporation and Charles Schwab Bank, SSB dismissed with prejudice. No damages award, injunctive relief, or finding of infringement or validity was issued by the Court, as the case terminated on settlement-driven procedural grounds. Each party was ordered to bear its own costs, expenses, and attorneys’ fees, and all pending requests for relief were denied as moot.

Verdict Cause Analysis

The basis of termination — a joint voluntary dismissal with prejudice — reflects the following key legal and strategic dynamics:

• Dismissal with prejudice under the Joint Motion (Dkt. No. 201) permanently extinguishes Dynapass’s right to re-assert the same infringement claims against Charles Schwab entities in any future proceeding, providing Schwab with lasting legal peace on this patent.
• The mutual cost-bearing provision, where each party absorbs its own attorneys’ fees and litigation costs, is a standard settlement confidentiality mechanism that avoids any court finding on fee-shifting under 35 U.S.C. § 285 or Federal Rule of Civil Procedure 54.
• No court ruling on claim construction, invalidity, or infringement was issued, meaning U.S. Patent No. 6,993,658 B1 remains in force and unchallenged on the merits, preserving Dynapass’s ability to assert the patent against other financial services defendants.
• The Eastern District of Texas venue selection by Dynapass was a deliberate litigation tactic — this court’s procedural pace and scheduling orders would have created early pressure on Schwab’s legal team to manage discovery costs and trial preparation timelines.

Legal Significance

1. Because the case was dismissed on joint motion without any claim construction ruling or validity finding, U.S. Patent No. 6,993,658 B1 emerges from this litigation with its claims legally intact, maintaining its full assertive value against other defendants in the fintech and banking sectors.
2. The with-prejudice dismissal creates a defendant-specific estoppel that protects Charles Schwab and its bank subsidiary from future suits by Dynapass on this patent, but it establishes no precedent that shields other financial institutions facing identical or related infringement claims.
3. This outcome reinforces a pattern in Eastern District of Texas NPE litigation where defendants with significant legal resources often reach negotiated exits prior to claim construction hearings, avoiding any court ruling that could be cited adversely in co-pending cases against other defendants.

Strategic Takeaways

For Patent Attorneys:

• When defending financial institution clients against authentication patent assertions in the Eastern District of Texas, early case assessment of the patent’s claim scope relative to the client’s specific technical implementation is critical — resolving before claim construction avoids creating adverse rulings that benefit co-plaintiffs in parallel actions.
• A with-prejudice joint dismissal with mutual cost-bearing is an effective settlement structure that resolves litigation without triggering § 285 exceptional case analysis or creating public record of payment amounts, protecting the defendant’s reputation and negotiating posture in future NPE disputes.
• Consider filing inter partes review (IPR) petitions at the USPTO against foundational authentication patents like US6993658 as an early parallel track to district court defense — this creates settlement leverage and can invalidate claims that otherwise remain intact after a case-specific dismissal.
• Evaluate the full defendant universe when advising clients: because Dynapass’s patent remains unchallenged, other financial services companies receiving demand letters based on the same patent should monitor this and related litigation for claim construction arguments developed in co-pending matters.

For IP Professionals:

• In-house IP teams at banks, brokerages, and fintech companies should audit their mobile and device-based authentication workflows against U.S. Patent No. 6,993,658 B1 and related continuation or family patents held by Dynapass, as the NPE’s assertion program against financial institutions is likely ongoing.
• The mutual cost-bearing outcome signals that Dynapass received some licensing consideration — IP portfolio managers should track Dynapass’s litigation history across all defendants to estimate the likely licensing rate and determine whether a proactive licensing approach is cost-effective compared to full defense.

For R&D Teams:

• Engineering teams implementing or updating user authentication features that involve personal communication devices — including push notifications, SMS OTP, device fingerprinting, and mobile app-based 2FA — should commission a freedom-to-operate analysis referencing US6993658 and its patent family before deployment.
• Design-around strategies for communication-device authentication should focus on architectural distinctions from the patent’s key claims: consider server-side verification flows, FIDO2/WebAuthn standards-based implementations, or hardware security key integrations that may fall outside the patent’s claimed scope.