Digital Doors, Inc. v. Renasant Bank, Inc. — Dismissed With Prejudice
Digital Doors asserted four cybersecurity patents against Renasant Bank’s Sheltered Harbor certified systems in the Northern District of Georgia. The plaintiff voluntarily moved to dismiss all claims with prejudice under Rule 41(a)(1) before the defendant filed any responsive pleading, closing the case in just 133 days.
Four cybersecurity patents, one bank, and an early exit with finality
Filed on 5 December 2024 in the Northern District of Georgia before Judge Victoria M. Calvert, this action saw Digital Doors, Inc. assert four U.S. patents — US10250639B2, US10182073B2, US9734169B2, and US9015301B2 — against Renasant Bank, Inc. The asserted patents relate to data security architectures, and the accused products were identified as Renasant’s Sheltered Harbor certified systems, a financial-sector data protection standard.
The case closed on 17 April 2025 when Digital Doors filed a Rule 41(a)(1) voluntary dismissal with prejudice, before Renasant had filed either an Answer or a Motion for Summary Judgment. A dismissal with prejudice is a final adjudication on the merits under res judicata principles, meaning Digital Doors is permanently barred from re-asserting the same claims against Renasant Bank on these four patents.
The 133-day lifespan and pre-answer timing suggest the parties may have reached a private resolution, or that Digital Doors elected to cut its exposure after preliminary case assessment. The public record is silent on any settlement terms or licensing agreement. The choice of dismissal with prejudice — rather than without — is a notable concession by the plaintiff, foreclosing any future litigation on these specific claims against this defendant.
Filing to Dismissed with Prejudice in 133 days
133-day case duration — resolved before defendant answered
Dismissed with prejudice: what the Rule 41(a)(1) exit means for both parties
Rule 41(a)(1) dismissal with prejudice — a permanent close
Fed. R. Civ. P. 41(a)(1) allows a plaintiff to dismiss without a court order before the defendant serves an answer or motion for summary judgment. By expressly adding ‘with prejudice,’ Digital Doors converted an otherwise without-prejudice voluntary dismissal into a final adjudication. Courts treat this as res judicata — the same claims cannot be re-litigated against Renasant Bank on these four patents.
Final — no re-filing permittedDigital Doors permanently relinquishes claims against Renasant
By filing with prejudice, Digital Doors surrendered the right to sue Renasant Bank again on US10250639B2, US10182073B2, US9734169B2, and US9015301B2. This is a significant concession. Whether it reflects a confidential settlement, a licensing arrangement, or a strategic reassessment of claim strength is not disclosed in the public record. The patents themselves remain in force and could still be asserted against other defendants.
Claims extinguished vs. RenasantRenasant Bank achieves full dismissal without filing a single pleading
Renasant Bank obtained a with-prejudice dismissal of all four patent claims without incurring the cost of preparing an Answer or summary judgment motion. This is an unusually clean exit. The bank is permanently shielded from re-assertion of these specific claims by Digital Doors. However, the absence of any court ruling on validity or infringement means the patents were not invalidated — only the claims against this defendant are foreclosed.
Full shield — no merits rulingSheltered Harbor certified banks remain on Digital Doors’ radar
Digital Doors’ patent portfolio covering data security architectures remains active and enforceable against other financial institutions using Sheltered Harbor certified systems. The early dismissal with prejudice in this case does not create any precedent on infringement or validity. Other regional and community banks deploying comparable data protection architectures should treat these four patents as live commercial risk and consider freedom-to-operate assessments.
Portfolio still active vs. third partiesFull party and counsel information
| Role | Name | Type | Detail |
|---|---|---|---|
| Plaintiff | Digital Doors, Inc. | Company | Cybersecurity patent assertion entity — holder of US10250639B2 and three related patentsSearch in Eureka ↗ |
| Defendant | Renasant Bank, Inc. | Company | Renasant Bank, Inc. — regional financial institution deploying Sheltered Harbor certified data protection systemsSearch in Eureka ↗ |
| Plaintiff counsel | Christopher A. Honea | Attorney | Counsel for Digital Doors, Inc.Search in Eureka ↗ |
| Plaintiff counsel | Michael Scott Fuller | Attorney | Counsel for Digital Doors, Inc.Search in Eureka ↗ |
| Plaintiff counsel | Randall Garteiser | Attorney | Counsel for Digital Doors, Inc.Search in Eureka ↗ |
| Plaintiff law firm | Garteiser Honea PLLC | Law Firm | Representing Digital Doors, Inc.Search in Eureka ↗ |
| Defendant counsel | Matthew Scott Knoop | Attorney | Counsel for Renasant Bank, Inc.Search in Eureka ↗ |
| Defendant law firm | Polsinelli PC (GA) | Law Firm | Representing Renasant Bank, Inc.Search in Eureka ↗ |
| Presiding judge | Judge Victoria M. Calvert | Judge | Georgia Northern District CourtSearch in Eureka ↗ |
Official order — verbatim text
The dismissal language — ‘all claims that were or could be asserted in this action with prejudice’ — is deliberately broad. The phrase ‘were or could be asserted’ suggests an intent to foreclose not only the four pleaded patent claims but also any related claims arising from the same transaction. Combined with the with-prejudice designation, this phrasing functions as a comprehensive release of litigation rights against Renasant Bank under these patents, consistent with an agreed resolution rather than a unilateral strategic retreat.
US10250639B2 and three related patents — data security architecture for financial systems
The four asserted patents — US10250639B2 (App. 14/597345), US10182073B2 (App. 14/597314), US9734169B2 (App. 13/900728), and US9015301B2 (App. 11/746440) — form a family of cybersecurity patents covering secure data architectures, access control, and data protection systems. The application dates span from 2007 (US9015301B2) through 2015, indicating a maturing portfolio built over nearly a decade of prosecution. The accused Sheltered Harbor certified systems are financial-sector data vaulting and recovery architectures designed to protect customer account data.
The strategic significance of this portfolio lies in its apparent breadth across financial data security implementations. Sheltered Harbor is an industry-wide standard adopted by hundreds of U.S. financial institutions, meaning that if claim scope is construed broadly, the addressable defendant pool is substantial. Digital Doors’ choice to assert all four patents simultaneously against a single regional bank suggests the patents are being positioned as a portfolio — where collective claim coverage is broader than any single patent — a common tactic in NPE enforcement campaigns targeting standardised technology deployments.
Should you run an FTO against US10250639B2 and the Digital Doors portfolio?
Any financial institution operating Sheltered Harbor certified systems, data vaulting infrastructure, or comparable secure data recovery architectures should treat this portfolio as a live FTO concern. Digital Doors has demonstrated willingness to litigate in the Northern District of Georgia, and the four patents cover a technology space — secure access, data protection, and controlled network architectures — broad enough to map onto multiple banking technology implementations beyond the specific Sheltered Harbor standard.
PatSnap Eureka’s FTO Search Agent can rapidly map the independent claims of US10250639B2, US10182073B2, US9734169B2, and US9015301B2 against your product architecture, surface relevant prior art that could support an IPR petition, and flag any continuations or related applications still in prosecution. For in-house IP teams at regional banks or fintech vendors, an Eureka-assisted FTO is a cost-efficient first step before a demand letter arrives.
Run a freedom-to-operate analysis on US10250639B2 to assess your product’s exposure
Run FTO in Eureka →Similar cybersecurity patent cases in U.S. district courts
Cases involving data security and access control patents asserted against financial institutions in U.S. district courts, including the Northern District of Georgia.
What this case signals for the financial cybersecurity IP landscape
A pre-answer dismissal with prejudice in a four-patent cybersecurity case rarely signals weakness alone — it typically reflects a resolution of some kind.
Pre-answer exits with prejudice often mask private settlements
When a plaintiff dismisses with prejudice before the defendant answers, it forfeits future claims at no litigation cost to the defendant. This pattern is consistent with a confidential licensing or settlement agreement. Financial institutions facing similar assertions from Digital Doors should note this precedent as a signal that early negotiation may be viable.
The four asserted patents remain enforceable against other defendants
The dismissal extinguishes claims only as to Renasant Bank. US10250639B2, US10182073B2, US9734169B2, and US9015301B2 are alive and unimpaired. Any bank or fintech operating Sheltered Harbor certified or comparable data-vaulting architectures should assess exposure — particularly given that Digital Doors is represented by Garteiser Honea PLLC, a firm with a track record of serial patent assertion.
Digital v Renasant — key questions answered
Digital Doors filed suit against Renasant Bank in the Northern District of Georgia on 5 December 2024, asserting four cybersecurity patents against Renasant’s Sheltered Harbor certified systems. The plaintiff voluntarily dismissed all claims with prejudice under Rule 41(a)(1) on 17 April 2025, before the defendant filed any Answer or summary judgment motion, closing the case after 133 days.
A dismissal with prejudice operates as a final adjudication on the merits under res judicata. Digital Doors is permanently barred from re-asserting the same patent claims — US10250639B2, US10182073B2, US9734169B2, and US9015301B2 — against Renasant Bank in any future proceeding. The patents themselves remain valid and enforceable against other parties.
Digital Doors asserted four U.S. patents: US10250639B2 (App. 14/597345), US10182073B2 (App. 14/597314), US9734169B2 (App. 13/900728), and US9015301B2 (App. 11/746440). These patents relate to cybersecurity data architectures, access control, and data protection systems, and were asserted against Renasant’s Sheltered Harbor certified systems.
Yes. The with-prejudice dismissal forecloses claims only as to Renasant Bank. The four asserted patents remain in force and Digital Doors retains the right to assert them against other financial institutions, fintech vendors, or any entity using comparable data security architectures. Other Sheltered Harbor certified banks should assess their exposure independently.
The public record does not disclose the reason. A pre-answer dismissal with prejudice is procedurally available under Rule 41(a)(1) and is consistent with either a confidential settlement or licensing agreement, or a strategic decision not to proceed. The ‘with prejudice’ designation is notable — a simple withdrawal would typically be without prejudice, so the finality here suggests some form of agreed resolution, though this cannot be confirmed from docket filings alone.
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