Stingray IP Solutions v. ADT Inc. — Dismissed With Prejudice After 469 Days
Stingray IP Solutions LLC asserted two wireless networking patents against ADT Inc. and ADT LLC, targeting ADT’s Smart Home, SoSecure, Pulse, and Blue by ADT product lines in the Eastern District of Texas. The parties filed a joint motion to dismiss with prejudice after 469 days, with each side bearing its own legal costs — suggesting a confidential settlement resolved the underlying dispute.
Confidential resolution ends wireless-patent clash in E.D. Texas
On 26 October 2022, Stingray IP Solutions LLC filed suit against ADT Inc. and ADT LLC in the United States District Court for the Eastern District of Texas (Case No. 2:22-cv-00421), asserting infringement of U.S. Patent Nos. 7,440,572 and 7,224,678. The accused products spanned ADT’s core connected-home portfolio: Smart Home packages, the SoSecure, ADT Control, and ADT Pulse mobile apps, Blue by ADT Doorbell Cameras, Command Panels, indoor and outdoor security cameras, and wireless touchscreen panels.
On 7 February 2024 — 469 days after filing — the court granted a joint motion to dismiss all claims with prejudice. The order extinguished every claim and cause of action Stingray had asserted against the ADT entities, permanently barring refiling on the same patents against the same defendants. Notably, the court simultaneously closed this member case (No. 2:22-cv-00421) while keeping the related lead case (No. 2:22-cv-00420) open, indicating that Stingray’s parallel litigation against other defendants remained active at the time of resolution.
The mutual cost-bearing arrangement and joint nature of the dismissal are consistent with a confidential settlement, though no financial terms are on the public record. The 469-day duration — covering substantial pre-trial activity and likely claim construction briefing — suggests the parties negotiated seriously before reaching resolution. What drove ADT’s decision to resolve rather than litigate through Markman and beyond remains unknown, as does any licensing arrangement that may underpin the dismissal.
Filing to dismissal in 469 days
469 days — longer than the median patent dismissal in E.D. Tex., suggesting substantive negotiation preceded resolution
Joint dismissal with prejudice: what the court order means for both parties
Joint motion signals mutual agreement, not court victory
A joint motion to dismiss means both Stingray and ADT agreed to end the litigation together — neither party was compelled by a court ruling. This mechanism is the standard procedural vehicle for resolving patent cases by settlement. The court’s role was confirmatory: it reviewed the joint request and granted it, issuing a formal dismissal order. No merits judgment on patent validity or infringement was issued.
FRCP Rule 41 voluntary dismissalDismissal with prejudice permanently bars Stingray’s claims against ADT
The ‘with prejudice’ designation is legally significant: it operates as a final adjudication on the merits, meaning Stingray cannot re-assert US7440572B2 or US7224678B2 against ADT Inc. or ADT LLC in any future proceeding. This is a stronger form of closure than a dismissal without prejudice, which would leave the door open to refiling. For ADT, this provides durable protection from Stingray on these specific patent claims.
Permanent bar on refilingEach party bears its own costs — neutral signal in settlement
The court ordered each party to bear its own costs, expenses, and attorneys’ fees. This is a common outcome in negotiated patent settlements and does not indicate that either side ‘won’ the costs argument. An award of fees to a prevailing party under 35 U.S.C. § 285 would typically require a finding of exceptional case circumstances — none were made here, consistent with a privately negotiated resolution rather than a litigation win.
No § 285 fee awardLead case No. 2:22-cv-00420 remained open at dismissal
The court’s order specifically closed this member case while directing the clerk to maintain lead case No. 2:22-cv-00420 as open, noting additional parties remain. This confirms Stingray’s campaign against the same patents extended beyond ADT — a hallmark of assertion-entity strategy. Other defendants in the broader docket may face ongoing exposure, and the ADT settlement does not bind or benefit them.
Multi-defendant patent campaignFull party and counsel information
| Role | Name | Type | Detail |
|---|---|---|---|
| Plaintiff | Stingray IP Solutions, LLC | Company | Patent assertion entity — holder of US7440572B2 and US7224678B2 (wireless networking)Search in Eureka ↗ |
| Defendant | ADT Inc. | Company | ADT Inc. and ADT LLC — leading U.S. residential and commercial security monitoring providerSearch in Eureka ↗ |
| Plaintiff counsel | Brandon V. Zuniga | Attorney | Counsel for Stingray IP Solutions, LLCSearch in Eureka ↗ |
| Plaintiff counsel | Jack Wesley Hill | Attorney | Counsel for Stingray IP Solutions, LLCSearch in Eureka ↗ |
| Plaintiff counsel | Jeffrey Ray Bragalone | Attorney | Counsel for Stingray IP Solutions, LLCSearch in Eureka ↗ |
| Plaintiff counsel | Marcus Benavides | Attorney | Counsel for Stingray IP Solutions, LLCSearch in Eureka ↗ |
| Plaintiff counsel | Mark Douglass | Attorney | Counsel for Stingray IP Solutions, LLCSearch in Eureka ↗ |
| Plaintiff counsel | Paul Campbell Stevenson | Attorney | Counsel for Stingray IP Solutions, LLCSearch in Eureka ↗ |
| Plaintiff counsel | Terry Afif Saad | Attorney | Counsel for Stingray IP Solutions, LLCSearch in Eureka ↗ |
| Defendant counsel | Steven Tepera | Attorney | Counsel for ADT Inc.Search in Eureka ↗ |
| Defendant counsel | Theresa A. Roozen | Attorney | Counsel for ADT Inc.Search in Eureka ↗ |
| Presiding judge | Judge / | Chief Judge | Texas Eastern District Court — Chief JudgeSearch in Eureka ↗ |
Stipulation of dismissal — official text
The court’s order tracks the joint motion language precisely, granting dismissal with prejudice of all claims Stingray asserted against both ADT Inc. and ADT LLC. The explicit ‘with prejudice’ designation forecloses any future refiling on these patents against these defendants. Critically, the order denies all pending relief motions as moot — meaning no substantive ruling on infringement, validity, or claim construction was ever issued. The separate instruction to close only the member case while maintaining the lead case open confirms this was a bilateral resolution within a broader multi-defendant assertion campaign.
US7440572B2 & US7224678B2 — Wireless Network Signalling Patents
US7440572B2 (application No. US09/760619) and US7224678B2 (application No. US10/217042) are foundational wireless networking patents asserted against ADT’s entire connected-home product architecture. The patents cover methods and systems for wireless signal routing and data transmission in networked environments — technology that underpins modern mesh Wi-Fi, sensor networks, and IoT device communication protocols. Both patents were filed in the early 2000s, placing them in the formative era of commercial wireless networking before smart home devices became mainstream.
The strategic relevance of these patents lies in their potential to read on broad swaths of connected security infrastructure — not merely a single component. By accusing ADT’s apps, cameras, command panels, and wireless panels simultaneously, Stingray’s assertion suggests claim language broad enough to implicate standard wireless communication stacks. Any vendor shipping Wi-Fi-enabled security devices, smart panels, or IoT cameras in the U.S. market should assess whether their product architecture falls within the scope of these claims, particularly given Stingray’s active multi-defendant campaign.
Should your team run an FTO check against US7440572B2 and US7224678B2?
If your company develops or sells wireless security cameras, smart home hubs, IoT sensor networks, or mobile security apps, these two patents represent a live clearance risk. The breadth of ADT’s accused product list — spanning hardware, firmware, and software apps — suggests Stingray’s claim interpretation is expansive. The absence of any Markman ruling means claim scope has not been judicially narrowed, leaving interpretation open. R&D teams designing wireless communication modules or mesh-network topologies into security products should conduct explicit FTO analysis before launch.
PatSnap Eureka’s FTO Search Agent can analyse the full claim sets of US7440572B2 and US7224678B2 against your product specifications, flag potentially blocking claims, and identify prior art that may support invalidity arguments. Eureka’s claim monitoring feature can also alert your team if Stingray files continuation applications or if related patents enter prosecution — giving IP counsel early warning before a demand letter arrives.
Run a freedom-to-operate analysis on US7440572B2 to assess your product’s exposure
Run FTO in Eureka →Similar wireless security patent cases filed in E.D. Texas
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What this case signals for the smart home security IP landscape
Stingray’s multi-defendant campaign against wireless security products highlights persistent assertion risk for connected-home vendors operating in E.D. Texas.
E.D. Texas remains a high-risk venue for smart home security defendants
The Eastern District of Texas continues to attract patent assertion entities targeting consumer IoT and connected security products. ADT’s decision to resolve — rather than pursue invalidity or non-infringement through trial — suggests the venue’s plaintiff-friendly reputation still influences defendant strategy. Companies selling wireless security systems in the U.S. should treat E.D. Texas filings as a material litigation risk.
Two wireless networking patents underpin a broad product-family assertion
Stingray asserted US7440572B2 and US7224678B2 across virtually every layer of ADT’s connected product stack — apps, cameras, panels, and Wi-Fi infrastructure. This breadth-of-accusation approach is characteristic of assertion entities seeking maximum leverage. Competitors offering similar smart home product suites face analogous exposure if Stingray’s campaign against other defendants in lead case 2:22-cv-00420 continues.
Stingray v ADT — key questions answered
The case was dismissed with prejudice by joint motion on 7 February 2024, 469 days after filing. Stingray IP Solutions had accused ADT Inc. and ADT LLC of infringing US7440572B2 and US7224678B2 across ADT’s smart home product portfolio. No merits rulings were issued; each party bears its own costs.
Stingray asserted two wireless networking patents: US7440572B2 (application No. US09/760619) and US7224678B2 (application No. US10/217042). Both cover wireless signal transmission and networking methods and were filed in the early 2000s.
Accused products included ADT Smart Home packages, the SoSecure, ADT Control, and ADT Pulse mobile apps, Blue by ADT Doorbell Cameras, Command Panels, indoor and outdoor security cameras, and wireless touchscreen panels — effectively ADT’s full connected-home security product suite.
No. A dismissal with prejudice only bars Stingray from refiling against ADT Inc. and ADT LLC on these specific claims. It offers no protection to third parties. The lead case No. 2:22-cv-00420 remained open at the time of dismissal, confirming Stingray’s campaign against other defendants continued independently.
The case was filed in the U.S. District Court for the Eastern District of Texas. Stingray was represented by Bragalone Olejko Saad PC and Ward, Smith & Hill, PLLC. ADT was represented by Pillsbury Winthrop Shaw Pittman LLP. Key plaintiff attorneys included Jeffrey Ray Bragalone and Jack Wesley Hill.
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