DataCloud Technologies v. Zscaler — Four-Patent Infringement Suit Ends in Dismissal With Prejudice
DataCloud Technologies, LLC filed suit against cloud security leader Zscaler in the Eastern District of Texas, asserting four patents spanning network management, firewall filtering, domain infrastructure, and user account provisioning. The parties jointly stipulated to dismissal after just 155 days, with DataCloud’s claims extinguished with prejudice — foreclosing any refiling on the same grounds.
A rapid exit: how a four-patent cloud security suit ended before trial
On July 9, 2024, DataCloud Technologies, LLC — a patent assertion entity — filed a patent infringement complaint against Zscaler, Inc. in the United States District Court for the Eastern District of Texas. The complaint asserted four patents: US7209959B1, US8370457B2, US6651063B1, and US7398298B2, targeting Zscaler’s Android Client Connector app, firewall filtering systems, multi-domain website infrastructure, and web-based roles management platform.
The case concluded on December 11, 2024, when the court accepted a joint stipulation of dismissal. Crucially, all claims DataCloud raised or could have raised were dismissed with prejudice, while Zscaler’s counterclaims and defenses were dismissed without prejudice. This asymmetric dismissal structure is legally significant: DataCloud is permanently barred from re-asserting the same claims against Zscaler on the same patents, whereas Zscaler retains the option to pursue its counterclaims in a future proceeding if the circumstances warrant.
Resolution in just 155 days — before substantive claim construction or discovery milestones typical of E.D. Texas patent cases — strongly suggests the parties reached a negotiated resolution or that Zscaler’s early defensive posture made continuation commercially unattractive for DataCloud. The public record does not disclose any financial settlement terms, licensing agreement, or the specific trigger that prompted dismissal, leaving the precise commercial outcome uncertain.
Filing to Case Dismissed in 155 days
155 days — resolved well below the median E.D. Texas patent trial timeline, suggesting early negotiation
Asymmetric dismissal: what with-prejudice and without-prejudice mean for each party
With-prejudice dismissal bars DataCloud from refiling
A dismissal with prejudice operates as a final adjudication on the merits under res judicata principles. DataCloud cannot refile any claim it raised or could have raised against Zscaler on these four patents. The court’s acceptance of the joint stipulation makes this binding. This is the strongest possible foreclosure short of a full trial verdict — DataCloud’s offensive options against Zscaler on this patent portfolio are exhausted.
Plaintiff claims extinguishedDataCloud permanently barred from re-asserting these patents vs. Zscaler
The with-prejudice designation means DataCloud accepted a permanent bar on reassertion against Zscaler on the asserted patents. Whether this reflects a confidential licensing payment, a recognition that the claims faced substantive weakness, or a purely strategic retreat is not disclosed in the public record. The patents remain nominally in force and could theoretically be asserted against other defendants, but DataCloud’s enforcement position against Zscaler is permanently closed.
No refiling permittedZscaler’s counterclaims survive — without-prejudice dismissal preserved
Zscaler’s defenses and counterclaims — which may have included invalidity challenges or declaratory judgment claims — were dismissed without prejudice. This preserves Zscaler’s ability to revive those claims if future circumstances arise, for example if DataCloud’s successor-in-interest attempts enforcement. In practice, however, with DataCloud’s claims extinguished, Zscaler has little immediate commercial incentive to pursue standalone counterclaims.
Counterclaims preservedZscaler’s product lines face no injunction or damages finding
Because the case ended without any merits adjudication, there is no judicial finding of infringement, validity, or damages against Zscaler. Its Android Client Connector, firewall filtering systems, multi-domain infrastructure, and roles management platform are unaffected by any court order. Competitors in the cloud security and zero-trust space should note that the four asserted patents were never adjudicated invalid — they remain live IP assets against other market participants.
No infringement findingFull party and counsel information
| Role | Name | Type | Detail |
|---|---|---|---|
| Plaintiff | DataCloud Technologies, LLC | Company | Patent assertion entity — holder of US7209959B1, US8370457B2, US6651063B1, US7398298B2Search in Eureka ↗ |
| Defendant | Zscaler | Individual | Zscaler, Inc. — cloud-native network security and zero-trust architecture providerSearch in Eureka ↗ |
| Plaintiff counsel | James Francis McDonough , III | Attorney | Counsel for DataCloud Technologies, LLCSearch in Eureka ↗ |
| Plaintiff counsel | Jonathan Lloyd Hardt | Attorney | Counsel for DataCloud Technologies, LLCSearch in Eureka ↗ |
| Plaintiff counsel | Jonathan R. Miller | Attorney | Counsel for DataCloud Technologies, LLCSearch in Eureka ↗ |
| Plaintiff law firm | Rozier Hardt McDonough PLLC | Law Firm | Representing DataCloud Technologies, LLCSearch in Eureka ↗ |
| Defendant counsel | Melissa Richards Smith | Attorney | Counsel for ZscalerSearch in Eureka ↗ |
| Defendant counsel | Ryan R. Smith | Attorney | Counsel for ZscalerSearch in Eureka ↗ |
| Defendant law firm | Gillam & Smith, LLP | Law Firm | Representing ZscalerSearch in Eureka ↗ |
| Defendant law firm | Wilson Sonsini Goodrich & Rosati PC (Palo Alto) | Law Firm | Representing ZscalerSearch in Eureka ↗ |
| Presiding judge | Judge N/A | Judge | Texas Eastern District CourtSearch in Eureka ↗ |
Official order — verbatim text
The court’s order accepts a jointly filed stipulation with an intentionally asymmetric structure: DataCloud’s offensive claims are extinguished with prejudice — a res judicata bar — while Zscaler’s counterclaims exit without prejudice, preserving optionality. No claim construction, infringement, or validity ruling was issued. The phrasing ‘raised or could have raised’ is particularly significant, capturing not just filed claims but any potential claims DataCloud might have held in reserve on these patents against Zscaler.
US7209959B1, US8370457B2, US6651063B1 & US7398298B2 — network infrastructure patents
The four asserted patents span foundational network infrastructure technologies. US7209959B1 (App. No. 09/542858) and US6651063B1 (App. No. 09/493911) are early-generation patents with filing roots in the late 1990s to early 2000s, covering network session management and domain infrastructure — technology layers that underpin modern cloud security platforms. US8370457B2 (App. No. 11/717911) and US7398298B2 (App. No. 11/690803) represent a subsequent generation addressing web-based account provisioning and firewall filtering policy management.
The strategic breadth of this portfolio is notable: rather than targeting a single product feature, DataCloud mapped each patent to a distinct Zscaler product line — mobile client, firewall, domain infrastructure, and roles management. This multi-vector assertion strategy is characteristic of sophisticated PAE campaigns designed to maximise settlement leverage. For competitors in the SASE, zero-trust, and cloud firewall markets, these patents represent live FTO risk, particularly given the absence of any invalidity ruling in this case.
Should your team run an FTO against US7209959B1, US8370457B2, US6651063B1 & US7398298B2?
Any company building or deploying cloud-native network security products — particularly those offering mobile client connectors, policy-based firewalls, multi-domain hosting, or web-based IAM and roles management — should treat this patent set as a live FTO concern. The Zscaler dismissal did not invalidate these patents. DataCloud or a successor entity retains full enforcement rights against other market participants, including SASE vendors, zero-trust platform providers, and enterprise cloud gateway operators.
PatSnap Eureka’s FTO Search Agent allows product and legal teams to map each claim of these four patents against your specific architecture — identifying whether your mobile client SDK, firewall ruleset engine, domain routing layer, or user provisioning API creates claim overlap. Eureka surfaces prior art, claim scope analysis, and competitive filing intelligence to support a defensible FTO opinion before you face an assertion letter.
Run a freedom-to-operate analysis on US7209959B1 to assess your product’s exposure
Run FTO in Eureka →Similar network security patent cases in E.D. Texas federal courts
Cases involving PAE assertions of network infrastructure and cloud security patents in the Eastern District of Texas, including zero-trust and firewall technology disputes.
What this case signals for the cloud security and zero-trust IP landscape
Four foundational network infrastructure patents tested against a cloud security leader — and resolved before any merits ruling. Here’s what that means.
E.D. Texas remains a magnet for PAE assertions against cloud security firms
DataCloud’s filing in the Eastern District of Texas follows an established pattern of patent assertion entities targeting cloud and SaaS vendors in plaintiff-friendly venues. Zscaler’s rapid engagement of Gillam & Smith and Wilson Sonsini signals a defensive strategy calibrated for E.D. Texas — IP teams at cloud security vendors should ensure standing litigation readiness in this jurisdiction.
Asymmetric dismissal terms signal a negotiated resolution, not a walkaway
The with-prejudice / without-prejudice split is rarely accidental. It typically reflects a negotiated outcome where the plaintiff accepts finality in exchange for some consideration — financial or otherwise. R&D and licensing teams should treat this pattern as a signal that DataCloud’s remaining portfolio may be licensed or monetised against other defendants in the network security space.
DataCloud v Zscaler — key questions answered
DataCloud asserted four patents: US7209959B1, US8370457B2, US6651063B1, and US7398298B2. These cover network session management, web-based user account and roles provisioning, internet domain infrastructure, and firewall filtering policy management — each mapped to a distinct Zscaler product or service.
The with-prejudice dismissal permanently bars DataCloud from refiling any claims it raised or could have raised against Zscaler on these four patents. It operates as a final adjudication under res judicata. Zscaler’s own counterclaims and defenses were dismissed without prejudice, preserving Zscaler’s ability to revive those claims if future circumstances require it.
No. The case was resolved via a joint stipulation of dismissal before any merits ruling. The court issued no findings on infringement, validity, or damages. All four patents — US7209959B1, US8370457B2, US6651063B1, and US7398298B2 — remain in force and are enforceable against other parties.
DataCloud accused five Zscaler product lines: the Zscaler Android Client Connector app, Zscaler firewalls with filtering policies, Zscaler systems supporting multiple domain names on the same website infrastructure, Zscaler web-based user account and roles management, and the www.zscaler.com platform.
At 155 days, the case resolved well before typical claim construction or discovery milestones in the Eastern District of Texas. This timeline is consistent with a negotiated resolution — potentially a licensing agreement or payment — though no financial terms are disclosed in the public record. It may also reflect early assessment by DataCloud that its claims faced substantive litigation risk given Zscaler’s experienced defence counsel.
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