Lone Star Targeted Advertising v. StackAdapt — Settled in 179 Days
Lone Star Targeted Advertising LLC asserted US Patent 6,301,619 against StackAdapt’s programmatic advertising platform in the Western District of Texas. The parties reached a Patent Release, Settlement and License Agreement within six months, dismissing all claims with prejudice under FRCP 41(a)(1)(A)(ii).
Fast settlement in Texas programmatic advertising patent dispute
On July 24, 2023, Lone Star Targeted Advertising LLC filed suit against StackAdapt Inc. in the U.S. District Court for the Western District of Texas (Case No. 6:23-cv-00534), presided over by Chief Judge Robert Pitman. The complaint asserted infringement of US Patent 6,301,619 — a patent directed to network-based targeted advertising technology — against the StackAdapt programmatic advertising platform. Lone Star was represented by The Mort Law Firm PLLC, while StackAdapt retained Foley & Lardner LLP.
The case closed on January 19, 2024, just 179 days after filing. On January 18, 2024, the parties filed a joint stipulation of dismissal under Federal Rule of Civil Procedure 41(a)(1)(A)(ii), dismissing all claims with prejudice. The stipulation expressly referenced a ‘Patent Release, Settlement and License Agreement’ dated December 12, 2023, indicating the commercial resolution was executed approximately five weeks before the formal court filing. Because Rule 41(a)(1)(A)(ii) stipulated dismissals are self-executing and require no judicial approval under Fifth Circuit precedent, the court’s order simply confirmed closure and directed each party to bear its own litigation costs.
A 179-day resolution is notably swift for patent infringement litigation in the Western District of Texas, which typically sees cases run well beyond one year through claim construction and trial. The existence of a formal license agreement — rather than a simple walk-away dismissal — suggests the parties found commercial value in structuring an ongoing relationship around the patent rights. The specific financial terms, license scope, and any ongoing royalty obligations remain confidential and are not disclosed in the public record.
Filing to dismissal in 179 days
179 days — resolved well under the median for patent infringement cases in W.D. Texas
Dismissed with prejudice pursuant to negotiated Patent Release and License
Rule 41(a)(1)(A)(ii): self-executing joint stipulation
A stipulated dismissal under FRCP 41(a)(1)(A)(ii) requires agreement of all parties who have appeared and takes effect automatically upon filing — no judicial signature or order is needed. The Fifth Circuit confirmed this in Yesh Music v. Lakewood Church (2013). Here, the court’s January 19 order simply acknowledged the filing and closed the docket, consistent with that procedural posture.
No court approval requiredWith prejudice: Lone Star cannot reassert these claims against StackAdapt
Dismissal with prejudice operates as a final adjudication on the merits for res judicata purposes. Lone Star Targeted Advertising cannot refile the same infringement claims based on US6301619B1 against StackAdapt in any U.S. court. Combined with the executed license agreement, StackAdapt receives both a contractual licence and a procedural bar against future suit on these claims by this plaintiff.
Bars refiling — preclusive effectLicense agreement signals ongoing commercial value in the patent
Rather than a simple dismissal, the parties executed a ‘Patent Release, Settlement and License Agreement’ on December 12, 2023 — roughly five weeks before the court filing. This structure typically signals that the defendant accepted a licence rather than contest patent validity, and that the plaintiff viewed licensing as the commercially preferred outcome. Financial terms and licence scope are not disclosed in the public record.
Patent licence executedEach party bears own costs — no fee-shifting awarded
The court ordered that each party bear its own costs, expenses, and attorneys’ fees. In patent cases, fee-shifting under 35 U.S.C. § 285 requires a finding that the case is ‘exceptional.’ The mutual cost-bearing outcome here is consistent with a negotiated settlement where neither party sought — or was positioned to obtain — an exceptional case finding, and both preferred a clean commercial resolution.
No fee-shifting appliedFull party and counsel information
| Role | Name | Type | Detail |
|---|---|---|---|
| Plaintiff | Lone Star Targeted Advertising, LLC | Company | Patent assertion entity — holder of US6301619B1, targeted advertising technologySearch in Eureka ↗ |
| Defendant | StackAdapt, Inc. | Company | StackAdapt Inc. — programmatic advertising platform providerSearch in Eureka ↗ |
| Plaintiff counsel | Raymond W. Mort , III | Attorney | Counsel for Lone Star Targeted Advertising, LLCSearch in Eureka ↗ |
| Defendant counsel | Jill M. Hale | Attorney | Counsel for StackAdapt, Inc.Search in Eureka ↗ |
| Presiding judge | Judge Robert Pitman | Chief Judge | Texas Western District Court — Chief JudgeSearch in Eureka ↗ |
Stipulation of dismissal — official text
The dismissal order confirms all claims are extinguished with prejudice pursuant to a formal Patent Release, Settlement and License Agreement. The reference to Rule 41(a)(1)(A)(ii) means no judicial merits determination was made — validity and infringement of US6301619B1 remain unlitigated. For StackAdapt, the licence provides forward clearance; for the patent, no adverse validity finding exists, preserving Lone Star’s ability to assert it against other defendants.
US6301619B1 — Network-based targeted advertising system
US Patent 6,301,619 (application number US09/260035) is a granted U.S. patent directed to network-based targeted advertising technology. Asserted against the StackAdapt programmatic advertising platform, the patent covers methods and systems for delivering targeted content to users based on identifiable characteristics or behavioural signals over a network. The application predates the modern programmatic ad stack, meaning its claim language was drafted before real-time bidding infrastructure became standard, which creates interpretive questions about how broadly its claims read on contemporary DSP and audience-targeting architectures.
US6301619B1 was valuable enough to support a formal licence and release agreement with a programmatic platform operator — consistent with the growing trend of early-internet ad-tech patents being asserted against SaaS-based successors. Any company operating a demand-side platform, audience segmentation engine, or behavioural targeting system should treat this patent as an active enforcement asset. The absence of an IPR challenge in this case means the patent’s validity has not been tested before the USPTO, leaving its claims fully enforceable against subsequent defendants.
Should your ad-tech platform run an FTO against US6301619B1?
If your product involves network-delivered targeted advertising — including programmatic bidding, audience segmentation, contextual targeting, or behavioural profile-based ad delivery — US6301619B1 warrants assessment. The StackAdapt settlement confirms the patent is actively licensed, not dormant. DSPs, SSPs, ad networks, and in-house programmatic teams at large advertisers should map their data pipeline and targeting logic against the patent’s independent claims before a demand letter arrives.
PatSnap Eureka’s FTO Search Agent can parse US6301619B1’s claim language, identify independent and dependent claims most relevant to your targeting architecture, and surface prior art or design-around opportunities. Claim monitoring alerts will notify your team if continuation applications or related family members are published, extending the patent family’s reach into next-generation targeting systems.
Run a freedom-to-operate analysis on US6301619B1 to assess your product’s exposure
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What this case signals for the programmatic advertising IP landscape
A fast settlement with a licence agreement suggests US6301619B1 carries enough claim scope to extract commercial value from programmatic ad platforms.
W.D. Texas remains a preferred venue for ad-tech patent assertions
Filing in the Western District of Texas continues to attract patent holders, even post-Waco transfer disputes. The 179-day resolution here — before any claim construction hearing — suggests defendants may calculate that early settlement is preferable to the cost and uncertainty of W.D. Texas litigation, particularly for SaaS-based ad platforms.
Licence structure over validity challenge is a key defendant signal
StackAdapt’s decision to execute a licence rather than challenge US6301619B1’s validity through IPR or litigation suggests the patent was assessed as defensible enough to warrant licensing. Companies operating programmatic advertising platforms should evaluate whether their technology falls within the patent’s claim scope before a demand letter arrives.
Lone v StackAdapt — key questions answered
The case was dismissed with prejudice on January 18, 2024, after the parties filed a joint stipulation of dismissal under FRCP 41(a)(1)(A)(ii). The dismissal was subject to a Patent Release, Settlement and License Agreement dated December 12, 2023. Each party bore its own costs. No merits determination was made by the court.
Lone Star asserted US Patent 6,301,619 (US6301619B1), a patent covering network-based targeted advertising technology. The patent was asserted against the StackAdapt programmatic advertising platform. Its application number is US09/260035.
Dismissal with prejudice is a final adjudication that bars Lone Star Targeted Advertising from refiling the same patent infringement claims against StackAdapt based on US6301619B1. It does not invalidate the patent — Lone Star retains the right to assert it against other defendants in future proceedings.
Yes. The dismissal stipulation expressly references a ‘Patent Release, Settlement and License Agreement’ dated December 12, 2023. This indicates the parties reached a commercial settlement, including a patent licence. The financial terms and licence scope are confidential and not disclosed in the public court record.
The case lasted 179 days, from filing on July 24, 2023, to closure on January 19, 2024. This is notably faster than typical patent infringement litigation timelines in the Western District of Texas, which often extend beyond twelve months through claim construction and trial phases.
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