In a case with broad implications for the endpoint security sector, QuickVault, Inc. filed a multi-patent infringement action against Tanium Inc. and four co-defendants — Aptive Environmental, LLC, AutoNation, Inc., BAE Systems, Inc., and Honeywell International, Inc. — in the Western District of Texas on November 7, 2023. The suit, assigned Case No. 1:23-cv-01364 before Judge Alan D. Albright, alleged infringement of seven U.S. patents covering data security and access control technologies, targeting Tanium’s Converged Endpoint Management (XEM) Platform. After 246 days of litigation, the parties filed a joint stipulation of dismissal without prejudice on July 10, 2024, with each side bearing its own costs.

This dismissal without prejudice leaves the legal landscape unsettled: QuickVault retains the right to refile, and no court has adjudicated the merits of the underlying claims. For in-house IP teams and patent counsel active in the endpoint management and cybersecurity space, the case signals that the asserted patent portfolio — spanning seven issued U.S. patents — remains a live litigation risk. R&D leaders building or acquiring converged endpoint management platforms should treat this docket as an early indicator of contested IP territory and conduct proactive freedom-to-operate analysis accordingly.

Case Overview

The Parties

The Patents at Issue

The seven patents asserted in this case — US9565200B2, US9961092B2, US10999300B2, US11568029B2, US11637840B2, US11880437B2, and US11895125B2 — collectively cover technologies related to secure data storage, user authentication, access control management, and the protection of sensitive information across networked computing environments. These patents describe systems and methods for verifying user identity, controlling access to protected data vaults, and managing security policies across endpoints, which directly maps to functionality offered by modern endpoint management platforms. Real-world applications include enterprise identity management, privileged access control, and the kind of policy-based security orchestration central to converged endpoint management solutions like Tanium’s XEM.

• • US11568029B2
• • US11880437B2
• • US10999300B2
• • US11637840B2
• • US9565200B2
• • US11895125B2
• • US9961092B2

Legal Representation

Plaintiff Counsel: Hill, Kertscher & Wharton, LLP; Ohanianip (lead: David K. Ludwig)
Defendant Counsel: Winston Strawn LLP; Winston Strawn LLP (Chicago) (lead: Barry Kenneth Shelton)

Litigation Timeline & Procedural History

The case was filed and adjudicated in the Western District of Texas before Chief Judge Alan D. Albright, a venue that has become one of the most patent-litigation-active federal districts in the United States due to its streamlined scheduling and experienced IP docket. As a first-instance district court proceeding, this case represents the foundational trial level where claim construction, discovery, and merits arguments would first be litigated, and the inclusion of five defendants spanning defense, automotive retail, and environmental services signals a broad customer-side enforcement campaign typical of portfolio licensing strategies.

At 246 days — approximately eight months — the case resolved considerably faster than the median patent case in W.D. Texas, which frequently extends beyond 18 months. The dismissal without prejudice, rather than a settlement with prejudice or a merits ruling, suggests the parties likely reached a confidential licensing or business resolution outside the formal court record, or that QuickVault elected to strategically withdraw. No substantive rulings on claim construction, validity, or infringement were entered, all pending motions were denied as moot, and each party was ordered to bear its own costs and attorneys’ fees.

The Verdict & Legal Analysis

Outcome

On July 10, 2024, Judge Alan D. Albright granted the parties’ Joint Stipulation of Dismissal Without Prejudice (ECF No. 52), ordering the dismissal of all claims and counterclaims in Case No. 1:23-cv-01364 with each side bearing its own costs, expenses, and attorneys’ fees. No damages were awarded, no injunctive relief was issued, and no court determination was made regarding infringement, validity, or enforceability of any of the seven asserted patents. The dismissal without prejudice preserves QuickVault’s right to reassert these same patents against Tanium or any of the co-defendants in future proceedings.

Verdict Cause Analysis

The case was initiated as a patent infringement action, and its resolution by stipulated dismissal without prejudice reflects several strategic and procedural dynamics common to multi-defendant licensing campaigns.

• QuickVault asserted seven issued U.S. patents — US9565200B2, US9961092B2, US10999300B2, US11568029B2, US11637840B2, US11880437B2, and US11895125B2 — against Tanium’s Converged Endpoint Management (XEM) Platform and the platform’s enterprise customers.
• The multi-defendant structure, spanning Tanium as the technology provider and four enterprise end-users across distinct industries, is consistent with a patent assertion strategy designed to maximize licensing leverage by targeting both the source of the accused technology and its commercial deployers.
• The dismissal without prejudice means the court made no ruling on infringement or validity, and the terms of any private resolution between the parties — including any licensing agreement or covenant not to sue — are not disclosed in the public record.
• All remaining pending motions, which may have included early dispositive motions or claim construction submissions, were denied as moot upon the stipulated dismissal, leaving no substantive legal record from which to infer the relative strength of either party’s position.

Legal Significance

1. Because the dismissal was entered without prejudice and without any claim construction ruling, none of the seven asserted patents received judicial scrutiny of their claim scope, preserving both their full assertion value and the uncertainty they create for competitors operating in the endpoint security space.
2. The W.D. Texas venue and Judge Albright’s docket continue to attract multi-patent, multi-defendant enforcement campaigns, and this case reinforces that patent holders can use the threat of coordinated customer-level suits to drive licensing discussions without reaching the merits stage of litigation.
3. The rapid resolution of this case — 246 days from filing to dismissal — without a public settlement amount or consent judgment suggests that practitioners and IP teams should monitor for refiling activity, as QuickVault retains full freedom to assert the same patent portfolio again under materially unchanged legal standards.

Strategic Takeaways

For Patent Attorneys:

• When representing defendants in multi-party patent suits with a shared accused platform, consider coordinating an inter partes review (IPR) filing strategy against the asserted patents early in the litigation timeline to create invalidity leverage independent of the district court proceedings.
• A dismissal without prejudice with no cost-shifting and no consent judgment provides minimal protection for the defendants — counsel should advise clients to seek covenants not to sue or license agreements with explicit scope definitions to prevent refiling exposure.
• Given that all seven patents remain unchallenged on the merits, prosecution counsel for companies in the endpoint security space should review the QuickVault portfolio claims for potential design-around opportunities and document that analysis contemporaneously to support a willfulness defense if litigation is refiled.

For IP Professionals:

• In-house IP teams at enterprise technology companies deploying endpoint management platforms should add the QuickVault patent portfolio — particularly US11895125B2, US11880437B2, and US11568029B2, the most recently issued patents in the asserted set — to their active monitoring watchlists, as the dismissal without prejudice signals continued assertion risk.
• Companies that were named as co-defendants alongside Tanium, including Honeywell, BAE Systems, AutoNation, and Aptive, should confirm whether any private resolution included a covenant not to sue with respect to future product configurations or acquired entity coverage, and update their IP risk registers accordingly.

For R&D Teams:

• Engineering teams developing or procuring converged endpoint management solutions should conduct a freedom-to-operate analysis against the seven QuickVault patents before extending their XEM-equivalent deployments, as the unresolved dismissal leaves claim scope judicially undefined and therefore commercially uncertain.
• Product managers integrating access control, authentication, or data vault functionalities into endpoint platforms should document design decisions that distinguish their implementations from the claim language of US9565200B2 and US9961092B2, the earliest-priority patents in the QuickVault portfolio.