SITE 2020 v. Superior Traffic Services: Federal Circuit Appeal Voluntarily Dismissed
SITE 2020 Inc. brought an infringement appeal to the Federal Circuit against Superior Traffic Services, LLC over US10249186B2 — a patent covering Automated Flagger Assistance Devices and portable traffic control systems. The parties agreed to dismiss the proceeding under Fed. R. App. P. 42(b) in just 59 days, with each side bearing its own costs.
A swift Federal Circuit exit: AFAD patent appeal ends by consent
SITE 2020 Inc. filed appeal No. 25-1841 at the U.S. Court of Appeals for the Federal Circuit on 9 June 2025, challenging an outcome in an infringement action involving US10249186B2. The patent in dispute relates to Automated Flagger Assistance Devices (AFADs), portable traffic signal devices, and traditional wired semi-permanent traffic control standards — technology used to manage traffic flow in roadwork and construction zones. The defendant, Superior Traffic Services, LLC, is a traffic control services provider that allegedly infringed the asserted patent.
The appeal was resolved on 7 August 2025 — just 59 days after filing — when the parties jointly agreed to dismiss the proceeding under Federal Rule of Appellate Procedure 42(b). The order reflects a consensual exit: no merits were adjudicated, no claim construction or infringement determination was made by the Federal Circuit, and the court directed each side to bear its own costs. The absence of a cost award is consistent with a negotiated resolution rather than a unilateral withdrawal.
The speed of resolution — well before appellate briefing would ordinarily complete — suggests the parties reached an agreement shortly after the appeal was docketed, possibly reflecting ongoing settlement discussions that had already begun at the district court level. The public record does not disclose the terms of any underlying agreement, and whether SITE 2020 secured a licensing arrangement, a covenant not to sue, or simply elected to abandon the appeal remains unknown. The dismissal leaves the district court record undisturbed and the patent itself unchallenged on validity.
Filing to Voluntary dismissal in 59 days
59-day appeal lifespan — resolved well before full Federal Circuit briefing typically concludes
Voluntarily dismissed at the Federal Circuit: what the order means for both parties
Fed. R. App. P. 42(b): consensual appellate dismissal
Rule 42(b) allows parties to dismiss an appeal by filing a signed agreement. Unlike a unilateral withdrawal, a joint 42(b) dismissal requires both parties’ consent, which typically signals an underlying agreement has been reached. No merits ruling is issued — the Federal Circuit makes no finding on infringement, validity, or claim scope. The lower court record stands as-is.
No merits adjudicationThe public record is silent on prejudice terms
A voluntary dismissal under Rule 42(b) at the appellate level does not automatically specify whether the underlying claims are dismissed with or without prejudice — that determination typically flows from the district court record or any separate stipulation. The order in this case does not specify, meaning the public record does not confirm whether SITE 2020 retains the right to refile claims against Superior Traffic Services on this patent.
Prejudice terms undisclosedSITE 2020 exits the appeal — patent validity intact but enforcement uncertain
SITE 2020’s voluntary exit means US10249186B2 was not subjected to Federal Circuit scrutiny on infringement or validity. The patent remains presumptively valid and enforceable. However, the dismissal without a merits win provides no appellate precedent SITE 2020 could deploy against other infringers in the AFAD and portable traffic signal market.
Patent survives unchallengedSuperior Traffic Services avoids a merits ruling at the Federal Circuit
Superior Traffic Services obtained dismissal of the appeal without any adverse ruling on infringement. The mutual cost-bearing order suggests neither party secured clear leverage. Depending on the terms of any underlying agreement, the defendant may face ongoing licensing obligations or a covenant arrangement — neither of which is confirmed in the public record. The absence of a validity challenge leaves the patent as a potential future enforcement risk.
No adverse appellate findingFull party and counsel information
| Role | Name | Type | Detail |
|---|---|---|---|
| Plaintiff | SITE 2020 INC. | Company | Traffic control technology company — holder of US10249186B2 covering AFAD systemsSearch in Eureka ↗ |
| Defendant | SUPERIOR TRAFFIC SERVICES, LLC | Company | Traffic control services provider allegedly infringing AFAD and portable signal patentsSearch in Eureka ↗ |
| Plaintiff counsel | John S. Artz | Attorney | Counsel for SITE 2020 INC.Search in Eureka ↗ |
| Plaintiff counsel | Jonathan Nikkila | Attorney | Counsel for SITE 2020 INC.Search in Eureka ↗ |
| Plaintiff law firm | Dickinson Wright PLLC | Law Firm | Representing SITE 2020 INC.Search in Eureka ↗ |
| Defendant counsel | Dominic Draye | Attorney | Counsel for SUPERIOR TRAFFIC SERVICES, LLCSearch in Eureka ↗ |
| Defendant counsel | Erik Bokar | Attorney | Counsel for SUPERIOR TRAFFIC SERVICES, LLCSearch in Eureka ↗ |
| Defendant counsel | Kacie Donovan | Attorney | Counsel for SUPERIOR TRAFFIC SERVICES, LLCSearch in Eureka ↗ |
| Defendant law firm | Greenberg Traurig LLP | Law Firm | Representing SUPERIOR TRAFFIC SERVICES, LLCSearch in Eureka ↗ |
| Presiding judge | Judge N/A | Judge | Court of Appeals for the Federal CircuitSearch in Eureka ↗ |
Official order — verbatim text
The dismissal order is brief and procedural: the Federal Circuit confirms the parties’ agreement under Rule 42(b) and imposes no cost award. The mutual cost-bearing term is analytically significant — it is inconsistent with a unilateral abandonment and strongly suggests a bilateral arrangement was reached. Because no merits briefing was completed, the Federal Circuit issued no guidance on claim construction, the standard of review that would have applied, or the district court’s underlying findings. The patent’s enforceability and claim scope are therefore unchanged by this proceeding.
US10249186B2 — Automated Flagger Assistance Devices and traffic control systems
US10249186B2, filed under application number US15/455595, protects technology relating to Automated Flagger Assistance Devices — remotely operated stop/slow paddle systems used to replace human flaggers in roadway construction zones — alongside portable traffic signal devices and traditional wired semi-permanent traffic control configurations. The patent sits at the intersection of traffic safety infrastructure and automation, a domain subject to federal and state work-zone safety regulations that drive consistent procurement demand.
For competitors and suppliers in the roadway safety equipment market, US10249186B2 represents a potential barrier to entry across multiple product categories simultaneously — AFADs, portable signals, and conventional wired systems. SITE 2020’s willingness to litigate to the Federal Circuit level, and the fact that the patent has never been adjudicated invalid or non-infringed, suggests the patent holder views it as a commercially durable enforcement asset. Any company developing or sourcing AFAD systems or portable traffic control products should treat this patent as a live clearance risk.
Should you run an FTO analysis against US10249186B2?
If your company designs, manufactures, imports, or deploys Automated Flagger Assistance Devices, portable traffic signal units, or wired semi-permanent traffic control systems in the U.S. market, US10249186B2 warrants a dedicated freedom-to-operate review. The patent has survived active litigation without any court-issued claim construction, meaning its scope has never been judicially narrowed. This creates meaningful uncertainty for product teams and procurement officers operating in the work-zone traffic control equipment space.
PatSnap Eureka’s FTO Search Agent can map the claims of US10249186B2 against your product specifications, identify relevant prior art that could support a design-around or validity challenge, and surface any continuation applications that may extend the patent family’s reach. Running a structured FTO now — before any enforcement notice — is significantly more cost-effective than responding to a Federal Circuit-level infringement action.
Run a freedom-to-operate analysis on US10249186B2 to assess your product’s exposure
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What this case signals for the traffic control technology IP landscape
A fast, consensual Federal Circuit exit on an AFAD patent suggests growing IP sensitivity in the automated traffic control equipment sector.
AFADs and portable traffic signals are active patent enforcement territory
US10249186B2 covers technology deployed widely in roadwork zones. The fact that SITE 2020 pursued enforcement to the Federal Circuit level — and that Superior Traffic Services engaged Greenberg Traurig — signals that both parties treated the IP as commercially significant. Companies operating in the traffic control equipment supply chain should audit their AFAD and portable signal product lines against this patent.
Mutual cost-bearing order is a hallmark of negotiated resolution
When parties agree to dismiss and each bears its own costs, it typically indicates a contemporaneous commercial agreement rather than a pure abandonment. IP professionals monitoring SITE 2020’s enforcement strategy should note that this patent has now survived district court litigation and a Federal Circuit filing without ever being found invalid or non-infringed by any court.
SITE v SUPERIOR — key questions answered
The Federal Circuit dismissed the appeal under Fed. R. App. P. 42(b) by agreement of the parties. No merits ruling was issued. Each side was ordered to bear its own costs. The dismissal was entered on 7 August 2025, 59 days after the appeal was filed.
The patent in dispute is US10249186B2 (application US15/455595), held by SITE 2020 Inc. It covers Automated Flagger Assistance Devices (AFADs), portable traffic signal devices, and traditional wired semi-permanent traffic control systems used in roadway construction and work zones.
No. A voluntary dismissal under Rule 42(b) carries no merits determination. The Federal Circuit made no finding on infringement or validity. US10249186B2 remains presumptively valid and enforceable. The dismissal does not create any precedent limiting the patent’s scope.
A mutual cost-bearing order in a Rule 42(b) dismissal typically reflects a negotiated resolution rather than a unilateral withdrawal by one party. It suggests both sides reached an agreement — potentially a license or covenant — though the terms of any such arrangement are not disclosed in the public appellate record.
SITE 2020 Inc. was represented by Dickinson Wright PLLC, with attorneys John S. Artz and Jonathan Nikkila listed as counsel. Superior Traffic Services, LLC was represented by Greenberg Traurig LLP, with Dominic Draye, Erik Bokar, and Kacie Donovan appearing as counsel.
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