In a closely watched data security patent dispute filed in the Eastern District of Texas, Digital Doors, Inc. and Regions Financial Corporation jointly moved to dismiss all claims without prejudice after 259 days of litigation. Case No. 2:23-cv-00552, filed November 21, 2023, asserted four U.S. patents covering data vaulting, resiliency planning, certification quality assurance, and network security architectures directly relevant to financial services infrastructure. The court accepted the stipulated dismissal on August 6, 2024, with each party bearing its own costs, attorneys’ fees, and expenses — leaving all claims legally unresolved and the door open for future reassertion.

This outcome carries significant strategic weight for IP professionals and in-house legal teams operating in the financial technology and data security space. The dismissal without prejudice means none of the asserted patents were adjudicated on the merits, preserving Digital Doors’ ability to refile and keeping Regions Financial in a posture of unresolved exposure. For R&D teams and compliance officers building data vaulting or resiliency platforms, these four patents represent an active FTO risk that demands immediate landscape analysis.

Case Overview

The Parties

The Patents at Issue

The four asserted patents cover a suite of interconnected data security and resilience technologies: US9015301B2 addresses foundational network security and data management architectures; US9734169B2 relates to data vaulting — the protection, portability, and recovery of critical data sets; US10182073B2 covers resiliency planning processes including incident response communications and continuity arrangements when standard disaster recovery plans fail; and US10250639B2 targets certification mechanisms encompassing quality assurance controls, independent audits, and management assertions. Together, these patents map directly onto the compliance and business continuity frameworks required of financial institutions under federal regulatory guidance.

• • US10250639B2
• • US10182073B2
• • US9734169B2
• • US9015301B2

Legal Representation

Plaintiff Counsel: Garteiser Honea PLLC (lead: Michael Scott Fuller)
Defendant Counsel: McGuireWoods LLP; McGuireWoods LLP (Houston); McGuireWoods LLP – Richmond (lead: Corinne Stone Hockman)

Litigation Timeline & Procedural History

The case was filed on November 21, 2023, in the Eastern District of Texas — a venue historically favored by patent plaintiffs for its efficient dockets, patent-friendly local rules, and experienced judicial infrastructure for complex IP disputes. As a first-instance district court matter, the case was subject to full Markman claim construction proceedings, discovery, and potential trial on the merits before Judge assignment under the court’s case management protocols. Notably, Case No. 2:23-cv-00552 was designated a member case under a lead case, No. 2:23-541, suggesting Digital Doors pursued a coordinated, multi-defendant litigation campaign in the same district — a common strategy among patent assertion entities seeking efficient parallel enforcement.

The case resolved in 259 days — roughly eight and a half months — without reaching claim construction or trial, suggesting the parties reached an off-docket arrangement prior to any substantive judicial ruling. The basis of termination was a stipulated dismissal without prejudice under Rule 41(a)(1), filed jointly by both parties. Each side bore its own attorneys’ fees and costs, which typically signals a private resolution rather than a defendant victory. The lead case (2:23-541) remained open at the time of dismissal, indicating Digital Doors’ broader litigation campaign against the financial sector was ongoing.

The Verdict & Legal Analysis

Outcome

The Court accepted and acknowledged the parties’ Stipulated Motion for Dismissal Without Prejudice on August 6, 2024, formally closing member case 2:23-cv-00552 while maintaining the lead case 2:23-541 as open. No damages were awarded, no injunctive relief was granted, and no claim construction rulings were issued — meaning the validity, scope, and infringement of all four asserted patents remain entirely unresolved as a matter of law. Each party was ordered to bear its own costs, expenses, and attorneys’ fees, and all pending requests for relief not explicitly granted were denied as moot.

Verdict Cause Analysis

The infringement action was terminated by stipulated dismissal, and the following legal grounds and procedural factors shaped the outcome:

• The dismissal was filed jointly under Federal Rule of Civil Procedure 41(a)(1), which permits voluntary dismissal without a court order when both parties stipulate, preserving the plaintiff’s right to refile the same claims in the future.
• No court order addressed the merits of the infringement allegations under any of the four asserted patents, meaning Digital Doors retains full legal standing to reassert US10250639B2, US10182073B2, US9734169B2, and US9015301B2 against Regions or any other defendant.
• The mutual cost-bearing arrangement — each party responsible for its own fees — is consistent with a confidential settlement or licensing agreement reached outside the court record, though no such agreement was publicly disclosed.
• The member case structure, with lead case 2:23-541 remaining open, indicates this dismissal represents a resolution specific to Regions Financial rather than an abandonment of Digital Doors’ broader enforcement campaign against the financial services industry.

Legal Significance

1. 1. Because the dismissal was without prejudice and no claim construction order was issued, the four asserted patents carry no adverse judicial history that would weaken Digital Doors’ position in future litigation against other defendants in the financial sector.
2. 2. The multi-defendant lead/member case structure used in E.D. Texas signals that Digital Doors’ patent portfolio is being deployed as part of a systematic licensing and enforcement program, which increases the probability that other financial institutions will receive demand letters or be named in related proceedings.
3. 3. The absence of any invalidity ruling or § 101 eligibility determination means these data security and resiliency patents remain presumptively valid, presenting ongoing claim construction and FTO risk for any company implementing comparable certification, vaulting, or resiliency technologies.

Strategic Takeaways

For Patent Attorneys:

• Monitor lead case 2:23-541 closely for claim construction orders and any invalidity rulings that could create estoppel or collateral effects relevant to the same patent family asserted against other defendants.
• When defending against PAE campaigns using member/lead case structures in E.D. Texas, consider coordinating invalidity arguments across co-defendants to develop unified IPR or post-grant challenge strategies before individual defendants settle out.
• The mutual cost-bearing stipulated dismissal without a disclosed license suggests early-stage resolution; evaluate whether an IPR petition filed before settlement could have generated inter partes review estoppel that benefits the broader industry.
• Assess the prosecution histories of US10250639B2, US10182073B2, US9734169B2, and US9015301B2 for § 101 Alice/Mayo vulnerability, as software-implemented financial security claims remain highly susceptible to eligibility challenges at PTAB.

For IP Professionals:

• Implement a litigation watch on lead case 2:23-541 and Digital Doors, Inc. as an entity to anticipate demand letters or new member cases that may target your organization’s data vaulting, disaster recovery, or compliance certification systems.
• Conduct a gap analysis between your organization’s existing data security infrastructure — particularly FFIEC-compliant resiliency and data vaulting processes — and the claim scope of US9734169B2 and US10182073B2, which map most directly to operationally common financial services architectures.

For R&D Teams:

• Engineering teams building or upgrading data vaulting, incident response, and business continuity systems for regulated industries should commission an FTO clearance study against all four Digital Doors patents before deployment, given the lack of any limiting claim construction order.
• Consider design-around alternatives for certification quality assurance mechanisms covered under US10250639B2 by documenting independent development paths and avoiding claim elements specifically tied to ‘requisite controls, independent audits, and management assertions’ as claimed in the patent specification.