Kephart Consulting v. Digifort System: Infringement Action Dismissed Without Prejudice
Kephart Consulting, LLC filed suit against Digifort System, LLC in Florida’s Southern District Court alleging infringement of US10796137B2, a patent covering security technique technology. The case resolved in 148 days when Kephart voluntarily dismissed all claims without prejudice — leaving the door open for future enforcement.
Early voluntary exit: Kephart preserves re-filing rights against Digifort
On November 17, 2024, Kephart Consulting, LLC initiated an infringement action against Digifort System, LLC in the U.S. District Court for the Southern District of Florida, asserting US10796137B2 — a patent directed at techniques for providing security. The suit was filed at a relatively early stage in what appeared to be a targeted enforcement campaign around this security-technology patent.
The case closed on April 14, 2025, when Kephart filed a notice of voluntary dismissal under Federal Rule of Civil Procedure 41(a)(1)(A)(i). The notice expressly states the dismissal is without prejudice as to the asserted patent. Critically, Digifort had not yet answered the complaint or filed a motion for summary judgment at the time of dismissal, meaning Kephart was entitled to dismiss as of right — no court order required.
The 148-day duration and pre-answer exit are consistent with several common patterns: settlement discussions that did not result in a formal agreement, a plaintiff reassessing claim scope or infringement evidence, or a licensing arrangement reached outside the formal record. The public docket provides no basis to determine which scenario applies. The without-prejudice designation is commercially significant — Kephart retains the right to reassert US10796137B2 against Digifort in a future action.
Filing to Voluntary dismissal in 148 days
148 days — resolved before defendant filed any answer or motion
Voluntary dismissal without prejudice: what the exit terms mean for both parties
Rule 41(a)(1)(A)(i): dismissal as of right, no court approval needed
Under FRCP 41(a)(1)(A)(i), a plaintiff may dismiss an action without a court order if the defendant has not yet served an answer or a motion for summary judgment. Kephart exercised this right here. Because no merits adjudication occurred, the dismissal carries no precedential weight on the validity or infringement of US10796137B2.
No court order requiredWithout prejudice: the record confirms re-filing rights are preserved
The notice expressly states the dismissal is without prejudice as to the asserted patent. This means Kephart retains the right to refile infringement claims against Digifort based on US10796137B2 in a future action, subject to applicable statutes of limitations. A dismissal with prejudice would have barred re-filing permanently — the public record here confirms that outcome was deliberately avoided.
Re-filing right retainedDigifort faces no final judgment — but litigation risk persists
Digifort System obtains no judgment in its favour and no declaration of non-infringement or invalidity. While the immediate action is extinguished, the without-prejudice dismissal means Digifort cannot rely on this case as a shield against a future assertion of the same patent. Products within the scope of US10796137B2 remain potentially exposed.
No finality for defendantEach party bears own costs — no fee-shifting, no financial admission
The dismissal notice stipulates each party bears its own costs, expenses, and attorneys’ fees. This mutual cost allocation is standard in voluntary pre-answer dismissals and does not imply fault or weakness on either side. It also forecloses any future fee-shifting motion tied to this specific action under 35 U.S.C. § 285.
No fee-shiftingFull party and counsel information
| Role | Name | Type | Detail |
|---|---|---|---|
| Plaintiff | Kephart Consulting, LLC | Company | Patent assertion entity — holder of US10796137B2 (security technique)Search in Eureka ↗ |
| Defendant | Digifort System, LLC | Company | Digifort System, LLC — accused of infringing security technique patentSearch in Eureka ↗ |
| Plaintiff counsel | Victoria Elisabeth Brieant | Attorney | Counsel for Kephart Consulting, LLCSearch in Eureka ↗ |
| Plaintiff law firm | Law Office of Victoria E. Brieant | Law Firm | Representing Kephart Consulting, LLCSearch in Eureka ↗ |
| Defendant counsel | Mark P. Terry | Attorney | Counsel for Digifort System, LLCSearch in Eureka ↗ |
| Defendant counsel | Victoria Elisabeth Brieant | Attorney | Counsel for Digifort System, LLCSearch in Eureka ↗ |
| Defendant law firm | Law Office of Victoria E. Brieant | Law Firm | Representing Digifort System, LLCSearch in Eureka ↗ |
| Presiding judge | Judge N/A | Judge | Florida Southern District CourtSearch in Eureka ↗ |
Official order — verbatim text
The dismissal notice invokes FRCP 41(a)(1)(A)(i) and explicitly designates the outcome as without prejudice to the asserted patent. This phrasing is deliberate — it preserves Kephart’s future enforcement position while immediately ending the current action. No merits ruling was issued; the court made no finding on infringement, validity, or claim scope. The cost-neutrality clause closes off fee-shifting arguments arising from this specific filing, but does not estop either party from future litigation over US10796137B2.
US10796137B2 — Technique for Providing Security
US10796137B2 (application number US16/372346) is directed at techniques for providing security — a domain that broadly encompasses methods and systems for protecting data, controlling access, or securing communications workflows. The patent was asserted by Kephart Consulting, LLC, suggesting a focused patent holding strategy. The application number date context and B2 grant designation indicate a granted utility patent that has passed examination and is enforceable as asserted.
Security technique patents occupy a strategically valuable position in IP portfolios because the claim language — depending on construction — can potentially read across a wide range of commercial software, hardware, or network security products. With no claim construction order or IPR proceeding on record for this patent arising from this case, US10796137B2 retains its full pre-litigation claim breadth. Any company developing or commercialising security data processing products should assess exposure before the patent is re-asserted in a new action.
Should your product team run an FTO against US10796137B2?
Any organisation developing security technique software, hardware, or integrated systems — particularly those operating in or distributing products into U.S. markets — should consider a formal freedom-to-operate assessment against US10796137B2. The without-prejudice dismissal of this action means the patent is fully enforceable and its holder has demonstrated willingness to litigate. There is no claim construction or invalidity ruling on record to rely on as a natural shield.
PatSnap Eureka’s FTO Search Agent allows R&D and IP teams to map the independent and dependent claims of US10796137B2 against specific product architectures and workflow designs. The tool surfaces prior art, identifies claim differentiation opportunities, and flags related family members across jurisdictions — giving your team the analytical foundation needed before a commercial launch or licensing discussion involving security technology products.
Run a freedom-to-operate analysis on US10796137B2 to assess your product’s exposure
Run FTO in Eureka →Similar patent infringement cases in security technology — Southern District of Florida
Browse patent infringement actions asserting security technique patents in the Southern District of Florida with comparable pre-answer dispositions and without-prejudice dismissals.
What this case signals for the security technology IP landscape
A pre-answer voluntary dismissal without prejudice is rarely a clean exit — it typically signals a pause, not a conclusion.
Without-prejudice dismissals are enforcement placeholders, not endings
When a patent holder dismisses without prejudice before the defendant even answers, the litigation clock is effectively paused. Kephart retains all enforcement rights under US10796137B2. Companies operating in the security technique space should treat this dismissal as a signal that the patent remains active and in play, not that the dispute is resolved.
Pre-answer exits often reflect off-docket activity — watch for licensing signals
A 148-day case that ends before any substantive filings is consistent with parallel licensing negotiations, claim-mapping recalibration, or a strategic decision to pursue different defendants first. The mutual cost-bearing term and lack of any settlement document in the public record leave the actual commercial resolution — if any — entirely opaque.
Kephart v Digifort — key questions answered
The dismissal is without prejudice, meaning Kephart Consulting retains the right to refile infringement claims against Digifort System based on US10796137B2 in a future action. No merits ruling was issued, so there is no court finding on infringement or validity. The current case is closed, but the patent remains enforceable.
Kephart filed its voluntary dismissal under FRCP 41(a)(1)(A)(i), which permits a plaintiff to dismiss as of right if the defendant has not yet served an answer or summary judgment motion. The public record does not disclose the underlying reason — possibilities include settlement, licensing negotiations, or a strategic decision to reassess the litigation. No explanation is required under the rule.
The patent asserted was US10796137B2 (application number US16/372346), described as covering a technique for providing security. It is a granted U.S. utility patent held by Kephart Consulting, LLC and was the sole patent asserted in this action.
Yes. Because the dismissal is expressly without prejudice as to the asserted patent, Kephart may refile claims based on US10796137B2 against Digifort in a future action, provided it does so within the applicable statute of limitations for patent infringement (typically six years under 35 U.S.C. § 286). The current dismissal does not bar re-assertion.
The voluntary dismissal notice stipulates that each party shall bear its own costs, expenses, and attorneys’ fees. No fee-shifting was ordered, and no motion under 35 U.S.C. § 285 for exceptional-case fees was filed. This mutual cost allocation is standard for pre-answer voluntary dismissals.
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