Linfo IP v. Stellar Data Recovery: Text Discovery Patent Action Dismissed in 42 Days
Linfo IP, LLC asserted US9092428B1 — a patent covering systems and methods for discovering and presenting information in text content — against Stellar Data Recovery Inc. in the Southern District of Texas. The plaintiff voluntarily dismissed all claims without prejudice just 42 days after filing, with each party bearing its own costs.
A 42-day patent sprint: text discovery IP claim dropped before any merits ruling
On December 16, 2024, Linfo IP, LLC filed a patent infringement action against Stellar Data Recovery Inc. in the U.S. District Court for the Southern District of Texas before Judge George C. Hanks, Jr. The complaint asserted US9092428B1, which covers systems, methods, and user interfaces for discovering and presenting information in text content — technology directly relevant to Stellar Data Recovery’s core software offerings in data retrieval and content search.
Less than three weeks into the new year, on January 6, 2025, Linfo IP filed a notice of voluntary dismissal under Federal Rule of Civil Procedure 41(a)(1)(A)(i). The court entered a final judgment ordering all claims dismissed without prejudice, meaning Linfo IP retains the legal right to refile the same claims against Stellar Data Recovery or any other party in the future. Each party was ordered to bear its own attorney’s fees and costs.
The 42-day lifecycle — from filing to dismissal — closed before any substantive motion practice, claim construction, or defendant response was publicly recorded. No defendant law firm or agent appears on the docket, suggesting the dismissal may have followed early-stage negotiations or a licensing discussion. The without-prejudice dismissal leaves Linfo IP’s enforcement options fully intact, and the absence of a cost-shifting ruling preserves commercial leverage for both sides.
Filing to Voluntary dismissal in 42 days
42 days — resolved before any substantive court rulings
Voluntarily dismissed: what the Rule 41 exit means for both parties
Rule 41(a)(1)(A)(i): plaintiff’s unilateral exit right
Rule 41(a)(1)(A)(i) permits a plaintiff to dismiss an action without a court order simply by filing a notice, provided the defendant has not yet served an answer or motion for summary judgment. This is the earliest and cleanest exit available. No judicial approval is required. The court’s order here confirms and formalises the dismissal, designating it a Final Judgment — but the legal trigger was the plaintiff’s own filing.
Pre-answer voluntary exitWithout prejudice: the distinction the public record clarifies
The court’s order expressly states dismissal is ‘without prejudice to their being refiled.’ This is legally significant: Linfo IP is not barred from asserting US9092428B1 against Stellar Data Recovery again, nor from pursuing other defendants. A with-prejudice dismissal would have permanently extinguished the claims. The public record is clear on this point — the court’s own order, not merely the plaintiff’s notice, confirms the without-prejudice character.
Refiling rights preservedStellar Data Recovery exits without any merits finding
Stellar Data Recovery obtained a clean exit: no liability, no injunction, no finding of infringement. However, the without-prejudice dismissal means the threat is not permanently resolved. If no licence or settlement was reached, Stellar Data Recovery remains exposed to a refiled action — potentially in a different venue or with a strengthened infringement theory. The absence of a defendant legal team on the docket suggests very limited formal litigation costs were incurred.
No merits adjudicationEarly dismissal may signal settlement or licensing dialogue
A 42-day resolution with no defendant appearance on record is consistent with pre-litigation or very early-stage licensing negotiations. Patent assertion entities frequently use Rule 41(a)(1)(A)(i) dismissals to formalise a licensing agreement reached outside court, or to pause litigation while talks continue. Companies in the text analytics and data recovery software space should monitor whether Linfo IP refiles or pursues related defendants, as the underlying patent remains fully enforceable.
Licensing signal likelyFull party and counsel information
| Role | Name | Type | Detail |
|---|---|---|---|
| Plaintiff | Linfo IP, LLC | Company | Patent assertion entity — holder of US9092428B1 covering text content discovery systemsSearch in Eureka ↗ |
| Defendant | Stellar Data Recovery Inc. | Company | Stellar Data Recovery Inc. — software company specialising in data recovery and content retrieval toolsSearch in Eureka ↗ |
| Plaintiff counsel | William P. Ramey , III | Attorney | Counsel for Linfo IP, LLCSearch in Eureka ↗ |
| Plaintiff law firm | Ramey LLP | Law Firm | Representing Linfo IP, LLCSearch in Eureka ↗ |
| Presiding judge | Judge George C Hanks, Jr | Judge | Texas Southern District CourtSearch in Eureka ↗ |
Official order — verbatim text
The court’s dismissal order is precise: all claims against all parties are dismissed without prejudice, and the designation as a ‘Final Judgment’ closes the docket while preserving Linfo IP’s refiling rights. The own-costs ruling — rather than a fee-shifting award under 35 U.S.C. § 285 — suggests no finding of exceptionality on either side. The absence of any defendant response or substantive ruling means this order carries no precedential weight on the merits of the patent’s validity or infringement scope.
US9092428B1 — System and Methods for Discovering Information in Text Content
US9092428B1 (application no. US13/709827) covers systems, methods, and user interfaces for discovering and presenting information embedded within text content. The patent addresses how software identifies, surfaces, and displays relevant information from unstructured or semi-structured text — a capability central to search engines, document analysis platforms, data recovery tools, and content intelligence applications. Its grant as a B1 indicates it issued without any post-issuance certificate of correction.
The strategic relevance of US9092428B1 extends well beyond data recovery software. Any product that processes textual input and surfaces structured or contextualised information to a user — including enterprise search, e-discovery tools, AI-powered reading assistants, and content analytics dashboards — could fall within a broad reading of the claims. Patent assertion entities holding such foundational text-processing patents represent an ongoing risk for SaaS and data intelligence companies, particularly those that have not conducted claim-level FTO analysis against this patent family.
Should your product be screened against US9092428B1?
If your product or platform processes text content and surfaces discovered information through a user interface — including data recovery software, document search tools, content analytics engines, or AI reading assistants — US9092428B1 warrants direct FTO attention. Linfo IP has demonstrated willingness to assert this patent in federal court, and a without-prejudice dismissal means the threat has not been permanently resolved for any category of defendant.
PatSnap Eureka’s FTO Search Agent can map your product’s feature set against the claim language of US9092428B1, surface prior art that may bear on validity, and identify related patents in the Linfo IP portfolio that could be co-asserted in a future action. R&D and product teams building or acquiring text-processing capabilities should run this analysis before launch or M&A due diligence — not after a complaint lands.
Run a freedom-to-operate analysis on US9092428B1 to assess your product’s exposure
Run FTO in Eureka →Similar text-processing and data discovery patent cases in Texas federal courts
Cases involving text content discovery and information extraction patents litigated in the Southern District of Texas follow identifiable patterns in assertion strategy and resolution timing.
What this case signals for the text analytics and data recovery IP landscape
A rapid voluntary dismissal without prejudice rarely marks the end of an enforcement campaign — it often marks a pivot.
Without-prejudice exits preserve full enforcement optionality for Linfo IP
Linfo IP’s dismissal under Rule 41(a)(1)(A)(i) leaves US9092428B1 fully intact and actionable. Any company whose product involves text content discovery, search, or information extraction UI should assess exposure now — before a refiled or parallel action creates litigation cost pressure.
Absence of defendant counsel suggests minimal adversarial engagement
No defendant law firm or agent appears on the public docket, consistent with a case resolved before formal engagement. This pattern — short filing window, no responsive pleading, own-costs dismissal — is frequently observed in cases that settle via licensing shortly after filing. Tracking Ramey LLP’s broader assertion activity against similar defendants is advisable.
Linfo v Stellar — key questions answered
Linfo IP, LLC filed a patent infringement action against Stellar Data Recovery Inc. on December 16, 2024 in the Southern District of Texas, asserting US9092428B1. On January 6, 2025, Linfo IP voluntarily dismissed all claims under Rule 41(a)(1)(A)(i). The court ordered dismissal without prejudice, with each party bearing its own costs. The case closed on January 27, 2025 after 42 days.
A without-prejudice dismissal means Linfo IP retains the full right to refile the same infringement claims against Stellar Data Recovery — or against other defendants — at any time within the applicable statute of limitations. US9092428B1 remains valid and enforceable. The dismissal does not constitute any finding on the patent’s validity, scope, or whether Stellar Data Recovery infringed.
US9092428B1, filed under application number US13/709827, is a U.S. patent covering systems, methods, and user interfaces for discovering and presenting information in text content. It is relevant to products that analyse unstructured text and surface contextualised information to users — including data recovery software, enterprise search tools, document analytics platforms, and AI-powered reading assistants.
The 42-day lifecycle, absence of any defendant legal representation on the docket, and own-costs ruling are consistent with early-stage licensing negotiations or a settlement reached shortly after filing. Patent assertion entities represented by Ramey LLP have historically used rapid voluntary dismissals to formalise licensing agreements reached outside formal litigation. The public record does not confirm a settlement, so this remains inferential.
No. A Rule 41(a)(1)(A)(i) voluntary dismissal is a procedural exit — no substantive motion was decided, no claim construction was issued, and no finding on infringement or validity was made. The dismissal order carries no precedential weight on the merits of US9092428B1. Competitors and potential defendants cannot rely on this outcome as a legal defence in any future action involving the same patent.
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