Alto Dynamics v. StockX: Nine-Patent Infringement Suit Voluntarily Dismissed in 90 Days
Alto Dynamics, LLC filed suit against StockX, LLC in the Western District of Texas asserting nine patents spanning data extraction, search, ad qualification, and authentication technologies. The action lasted just 90 days before Alto Dynamics voluntarily dismissed all claims. StockX had not filed an Answer or a motion for Summary Judgment at the time of dismissal.
Nine Patents, No Answer Filed, Dismissed in Under Three Months
On 5 October 2022, Alto Dynamics, LLC filed an infringement action against StockX, LLC in the Western District of Texas before Judge Alan D. Albright. The complaint asserted nine patents — US6662190B2, US7392160B2, USRE046513E, US6604100B1, US7152018B2, US7657531B2, US6757662B1, US8051098B2, and US6691103B1 — covering technologies including automated data extraction, search engine systems, database conversion, display advertisement qualification, usage-pattern monitoring, and stateless authentication.
The recorded Basis of Termination is 'Voluntary dismissal'. The docket order states that Alto Dynamics, through counsel, filed a notice under Fed. R. Civ. P. 41(a)(1)(A)(i) voluntarily dismissing all claims WITH PREJUDICE, and expressly notes that StockX had neither filed an Answer nor a motion for Summary Judgment prior to the dismissal. The case closed on 3 January 2023.
A resolution within 90 days — before the defendant filed any responsive pleading — is notably compressed, even for the Western District of Texas. Whether the rapid closure reflects a negotiated resolution, a licensing arrangement, or a unilateral strategic decision by Alto Dynamics is not disclosed in the available public record. The specific terms, if any, are not disclosed in the available record.
See Complete Case & Patent Analysis →Filing to Voluntary dismissal in 90 days
90 days — case resolved before defendant filed any responsive pleading
US6662190B2 and eight co-asserted patents — data, search, and authentication technologies
Any company operating an online marketplace, e-commerce platform, data aggregation service, or web-application stack that uses automated data extraction, relational-to-document conversion, search engines, display ad qualification, usage monitoring, or stateless session authentication should assess its exposure to these nine patents. The dismissal with prejudice binds only Alto Dynamics against StockX — it provides no clearance for other parties or other assertion vehicles.
Official order — verbatim text
The dismissal notice invokes Rule 41(a)(1)(A)(i) and expressly states that StockX had filed neither an Answer nor a Summary Judgment motion — confirming the procedural window for a unilateral, self-executing dismissal was open. The with-prejudice designation is consequential: it prevents Alto Dynamics from reasserting these nine patents against StockX. No merits findings, claim constructions, or validity rulings were issued, leaving the patents' scope and validity entirely unaddressed on the public record.
Voluntarily dismissed: what the Rule 41 notice means for both parties
Rule 41(a)(1)(A)(i): self-executing dismissal before any answer
A Rule 41(a)(1)(A)(i) notice is filed unilaterally by the plaintiff and takes effect immediately — no court order is required. It is available as of right only before the defendant files an answer or a motion for summary judgment, both of which StockX had not filed here. The notice states the dismissal is WITH PREJUDICE, meaning Alto Dynamics cannot refile these specific claims against StockX.
Self-executing; no court order neededWith prejudice: Alto Dynamics cannot refile these claims
The verdict text expressly states the dismissal is WITH PREJUDICE. The recorded Basis of Termination is 'Voluntary dismissal' without further qualification. A with-prejudice voluntary dismissal under Rule 41 operates as a final adjudication on the merits for claim-preclusion purposes, barring Alto Dynamics from reasserting the same nine patents against StockX in a future action. Whether any consideration passed between the parties is not disclosed in the available record.
Bars refiling against StockXStockX exits without filing a single pleading
StockX was dismissed from the action without having filed an Answer, a motion to dismiss, or a motion for summary judgment. This means no claim construction, no invalidity positions, and no merits findings appear on the public record. StockX's IP exposure from these nine patents in any future dispute with a different plaintiff or a different defendant is unresolved.
No merits adjudicationNine patents remain valid and potentially enforceable elsewhere
Because no court ruled on the validity or scope of any of the nine asserted patents, all nine remain presumptively valid under 35 U.S.C. § 282. Companies operating in data extraction, search, ad-qualification, or stateless-authentication technology domains — sectors closely associated with online marketplaces — should consider whether their products intersect with the claim scope of these patents. The patents' continued validity creates ongoing FTO considerations for similarly situated technology companies.
Patents remain presumptively validFull party and counsel information
| Role | Name | Type | Detail |
|---|---|---|---|
| Plaintiff | Alto Dynamics, LLC | Company | Patent assertion entity — holder of US6662190B2 and eight co-asserted data and authentication patentsSearch in Eureka ↗ |
| Defendant | StockX, LLC | Company | StockX, LLC — online marketplace platform for consumer goods and collectiblesSearch in Eureka ↗ |
| Plaintiff counsel | James F. McDonough | Attorney | Counsel for Alto Dynamics, LLCSearch in Eureka ↗ |
| Plaintiff counsel | Jonathan L. Hardt | Attorney | Counsel for Alto Dynamics, LLCSearch in Eureka ↗ |
| Plaintiff counsel | Jonathan R. Miller | Attorney | Counsel for Alto Dynamics, LLCSearch in Eureka ↗ |
| Plaintiff counsel | Travis E. Lynch | Attorney | Counsel for Alto Dynamics, LLCSearch in Eureka ↗ |
| Plaintiff law firm | Rozier Hardt McDonough PLLC | Law Firm | Representing Alto Dynamics, LLCSearch in Eureka ↗ |
| Defendant counsel | Eric J. Klein | Attorney | Counsel for StockX, LLCSearch in Eureka ↗ |
| Defendant counsel | Hilary Lovett Preston | Attorney | Counsel for StockX, LLCSearch in Eureka ↗ |
| Defendant counsel | Jeffrey T. Han | Attorney | Counsel for StockX, LLCSearch in Eureka ↗ |
| Defendant law firm | Vinson & Elkins LLP | Law Firm | Representing StockX, LLCSearch in Eureka ↗ |
| Presiding judge | Judge Alan D Albright | Judge | Texas Western District CourtSearch in Eureka ↗ |
R&D signals: data extraction, search, and authentication patent landscape
Forward-looking patent intelligence derived from the Alto Dynamics v. StockX assertion — covering portfolio activity, technology filing trends, and white-space opportunities across the nine asserted domains.
Alto Dynamics' assertion portfolio: nine patents, multiple data-tech domains
Alto Dynamics asserted nine patents spanning data extraction, search, ad qualification, authentication, and usage monitoring in a single complaint — suggesting a consolidated portfolio of foundational internet-infrastructure IP. Tracking Alto Dynamics' other WDTX filings and any continuation patents stemming from these families gives early warning of future assertion campaigns targeting similar technology stacks.
Portfolio-level assertion watchFiling trends in automated data extraction and stateless authentication
The patent families asserted here — automatic data extraction, relational-document conversion, and stateless authentication — represent active R&D areas where post-grant filings, continuations, and CIPs continue to emerge. Understanding the current density of patenting activity in these domains helps product teams identify both infringement risk zones and white-space opportunities for differentiated technical development.
Active filing domainsStockX's patent position in marketplace and authentication technology
StockX exited this action without filing any pleading, leaving its invalidity and non-infringement positions undisclosed. Assessing StockX's own patent filings in data infrastructure, authentication, and marketplace technology reveals whether it has developed defensive IP capable of countering future assertion campaigns in these technical areas.
Defensive IP assessmentAdjacent innovation opportunities: next-generation search and authentication
The asserted patents reflect early-2000s architectures for search, data extraction, and session authentication. Post-grant continuations aside, significant white space exists in AI-augmented data extraction pipelines, vector-based search systems, and zero-trust or token-based authentication frameworks that go beyond the claim scope of these foundational patents. R&D teams can use this case as a reference point to map claim-free innovation corridors.
Innovation white spaceSimilar patent assertion cases: data extraction and authentication patents in WDTX
Cases involving data extraction, search, authentication, and ad-qualification patents filed in the Western District of Texas before Judge Albright, with comparable multi-patent complaint structures.
What this case signals for the data-extraction and online-marketplace IP landscape
A nine-patent suit dismissed in 90 days before any answer is filed carries distinct signals for IP teams monitoring assertion activity in the data and e-commerce technology space.
Pre-answer dismissals with prejudice can foreclose future claims on the same patents
When a plaintiff voluntarily dismisses with prejudice under Rule 41(a)(1)(A)(i), the res judicata effect bars that specific plaintiff from reasserting the same patents against the same defendant. IP teams at online marketplace platforms should log such dismissals as part of their litigation-watch programs — they define the outer boundary of a specific plaintiff's enforcement rights against them.
Nine-patent complaint in WDTX before Judge Albright: venue strategy remains active
Filing a broad, multi-patent complaint before Judge Albright in the Western District of Texas continues to be a preferred strategy for patent assertion entities. Even when cases resolve quickly, the filing itself signals portfolio monetisation activity. R&D and legal teams in adjacent technology spaces — particularly e-commerce, search, and authentication — should monitor Albright's docket for similar complaints.
Alto v StockX — key questions answered
Alto Dynamics, LLC filed a patent infringement action against StockX, LLC in the Western District of Texas on 5 October 2022, asserting nine patents across data extraction, search, ad qualification, and authentication technologies. On 3 January 2023 — 90 days after filing — Alto Dynamics voluntarily dismissed all claims with prejudice under Fed. R. Civ. P. 41(a)(1)(A)(i). StockX had not filed an Answer or Summary Judgment motion prior to dismissal.
Alto Dynamics asserted nine patents: US6662190B2, US7392160B2, USRE046513E, US6604100B1, US7152018B2, US7657531B2, US6757662B1, US8051098B2, and US6691103B1. The patents cover automated data extraction, display advertisement qualification, relational-to-document conversion, database search methodology, usage-pattern monitoring, and stateless authentication systems.
A Rule 41(a)(1)(A)(i) dismissal with prejudice means Alto Dynamics is permanently barred from reasserting the same nine patents against StockX. The dismissal is self-executing — no court order was required. However, no validity or infringement ruling was issued, so the patents remain presumptively valid and potentially enforceable by Alto Dynamics against other defendants or by any future assignee.
No. The with-prejudice dismissal binds only Alto Dynamics against StockX. It provides no claim preclusion, invalidity finding, or freedom-to-operate clearance for any other party. Companies operating data extraction, search, authentication, or ad-qualification technology stacks should conduct independent FTO analysis against all nine patent numbers before relying on this case's outcome as any form of clearance.
The Western District of Texas, and specifically Judge Alan Albright's docket in Waco, has been a preferred venue for patent assertion entities due to its historically fast scheduling and patent-friendly procedural rules. Filing a multi-patent complaint before Judge Albright is consistent with a broader patent monetisation strategy. The rapid voluntary dismissal — before any responsive pleading — means no venue challenge or transfer motion was tested in this case.
This page is compiled from public court dockets and third-party patent and litigation data via PatSnap Eureka, and is provided for general informational purposes only. The information shown — including party names, patent and application numbers, dates, case status, outcomes, and any analysis — may be incomplete, may not reflect the most recent filings or legal status, and may contain errors or omissions. Verify all details against official court records (for example, PACER) and the relevant patent office before relying on them.
Nothing on this page constitutes legal advice or a legal opinion on the validity, infringement, enforceability, or scope of any patent or case, and no attorney‑client relationship is created by its use. Any description of an outcome (such as a dismissal, settlement, or consent judgment) is a general summary, not a legal determination. All patents, trademarks, and company or law‑firm names are the property of their respective owners. PatSnap makes no warranty as to the accuracy or completeness of this content and disclaims, to the fullest extent permitted by law, all liability for reliance on it. For advice on a specific matter, consult qualified legal counsel.
PatSnap Eureka searches patents and litigation data to answer instantly.