Shoals Technologies v. ITC: Federal Circuit Appeal Voluntarily Dismissed
Shoals Technologies Group appealed an International Trade Commission ruling involving three patents covering solar panel lead assemblies and photovoltaic fuse connector systems. The Federal Circuit proceeding was dismissed by mutual agreement under Fed. R. App. P. 42(b) after 177 days, with each side bearing its own costs.
Solar connector IP appeal cut short by mutual withdrawal
Shoals Technologies Group, LLC — a leading manufacturer of balance-of-systems components for utility-scale solar installations — filed this appeal at the Court of Appeals for the Federal Circuit on 24 June 2024. The case, docketed as No. 24-1991, challenged a prior decision of the International Trade Commission involving three patents: US11689153B2, US10553739B1, and US10992254B2, all directed at solar panel lead assembly and photovoltaic inline fuse connector technology.
The appeal was terminated on 18 December 2024 when the parties jointly agreed to dismiss the proceeding under Federal Rule of Appellate Procedure 42(b). The court’s order specified that each side would bear its own costs. Because the basis of termination is recorded as voluntary dismissal without further specification, the public record does not confirm whether the dismissal was with or without prejudice — a distinction with material implications for future enforcement.
The 177-day duration from filing to closure is notably brief for a Federal Circuit appeal, suggesting the parties may have reached a commercial accommodation or strategic resolution before merits briefing was complete. What drove that resolution — whether a licensing agreement, a design-around, or a settlement of the underlying ITC exclusion order dispute — is not disclosed in the public record. The three patents-in-suit remain issued and, absent a confirmed with-prejudice dismissal, their enforceability against third parties is unaffected by this proceeding.
Filing to Voluntary dismissal in 177 days
177-day appeal lifecycle — typical Fed. Circuit cases run 12–24 months to decision
Voluntarily dismissed: what the mutual withdrawal means for both parties
Fed. R. App. P. 42(b) dismissal: no merits ruling issued
Rule 42(b) allows an appellant to dismiss an appeal by filing a signed agreement with the court. The Federal Circuit issued no ruling on the underlying ITC decision, meaning no appellate precedent was created and the merits of the patent claims were never adjudicated at this level. The original ITC record — whatever it determined — is left legally undisturbed by this order.
No merits adjudicationPublic record is silent on prejudice status
A dismissal with prejudice bars the same claim from being re-litigated; one without prejudice leaves the door open to refiling. The court’s order records ‘voluntary dismissal’ without specifying either. This ambiguity matters: if the dismissal is without prejudice, Shoals could potentially re-appeal or pursue separate enforcement. IP professionals should not assume either outcome without further documentation.
Prejudice status unconfirmedShoals retains three issued patents with no appellate loss on record
Because the Federal Circuit issued no adverse ruling, Shoals Technologies exits this proceeding with its three solar connector patents intact. The ITC proceedings that preceded this appeal may have generated findings on validity or infringement, but those are not overturned here. Shoals retains enforcement options against other parties in district court or future ITC actions, subject to any private agreement made in connection with this dismissal.
Patents remain enforceableSolar BOS competitors face continued patent exposure
The absence of a Federal Circuit merits ruling means no narrowing construction of Shoals’ lead assembly or fuse connector claims was issued. For solar equipment manufacturers and importers operating in the balance-of-systems space, the scope of these three patents remains as asserted. Companies producing competing lead assemblies or PV inline fuse connectors should treat these patents as active enforcement risks until validity or scope is definitively determined elsewhere.
Sector risk persistsFull party and counsel information
| Role | Name | Type | Detail |
|---|---|---|---|
| Plaintiff | Shoals Technologies Group, LLC | Company | Solar balance-of-systems manufacturer — holder of US11689153B2, US10553739B1, US10992254B2Search in Eureka ↗ |
| Defendant | International Trade Commission | Individual | U.S. International Trade Commission — federal agency adjudicating import-based IP disputesSearch in Eureka ↗ |
| Plaintiff counsel | Charles Sheldon Barquist Esq. | Attorney | Counsel for Shoals Technologies Group, LLCSearch in Eureka ↗ |
| Plaintiff counsel | Jason E. Stach | Attorney | Counsel for Shoals Technologies Group, LLCSearch in Eureka ↗ |
| Plaintiff counsel | Jason Lee Romrell | Attorney | Counsel for Shoals Technologies Group, LLCSearch in Eureka ↗ |
| Plaintiff counsel | Jeffrey Curtiss Totten | Attorney | Counsel for Shoals Technologies Group, LLCSearch in Eureka ↗ |
| Plaintiff counsel | Kirk R. Harris | Attorney | Counsel for Shoals Technologies Group, LLCSearch in Eureka ↗ |
| Plaintiff counsel | Mareesa Arnita Frederick | Attorney | Counsel for Shoals Technologies Group, LLCSearch in Eureka ↗ |
| Plaintiff counsel | Sydney Kestle | Attorney | Counsel for Shoals Technologies Group, LLCSearch in Eureka ↗ |
| Plaintiff law firm | Finnegan, Henderson, Farabow, Garrett & Dunner, LLP | Law Firm | Representing Shoals Technologies Group, LLCSearch in Eureka ↗ |
| Plaintiff law firm | Maschoff Brennan PLLC | Law Firm | Representing Shoals Technologies Group, LLCSearch in Eureka ↗ |
| Defendant counsel | Paul D. Lall Advisor | Attorney | Counsel for International Trade CommissionSearch in Eureka ↗ |
| Defendant counsel | Wayne W. Herrington | Attorney | Counsel for International Trade CommissionSearch in Eureka ↗ |
| Presiding judge | Judge N/A | Judge | Court of Appeals for the Federal CircuitSearch in Eureka ↗ |
Official order — verbatim text
The court’s order is a consent dismissal under Fed. R. App. P. 42(b), meaning it reflects the parties’ agreement rather than any judicial determination on the merits. The phrase ‘the parties having so agreed’ confirms mutual consent. No finding of infringement, validity, or claim construction was issued. The cost-neutrality order — each side bears its own — is typical for negotiated withdrawals and offers no signal as to relative litigation strength or who, if anyone, extracted concessions in a private agreement.
US11689153B2, US10553739B1 & US10992254B2 — Solar Lead Assembly & PV Fuse Connector Patents
The three patents-in-suit cover interconnection hardware central to utility-scale solar deployments. US10553739B1 (application No. 14/295132) and US10992254B2 (application No. 14/849458) relate to earlier-generation lead assembly and photovoltaic inline fuse connector designs, while US11689153B2 (application No. 17/301609) represents a more recent continuation-era filing. Together they protect the physical and electrical architecture that routes DC power from solar arrays to inverters — a high-volume, cost-sensitive component category.
Shoals Technologies holds a commercially significant position in the solar balance-of-systems market, and this three-patent portfolio suggests a deliberate layering strategy across generations of lead assembly design. For competitors and new market entrants manufacturing or importing combiner boxes, home-run cables, or fuse connector assemblies, these patents represent a meaningful freedom-to-operate exposure — particularly given that the ITC action preceding this appeal targeted imported products, indicating Shoals has actively enforced against foreign manufacturers supplying the U.S. market.
Should you run an FTO against US11689153B2, US10553739B1 and US10992254B2?
Any company manufacturing, importing, or integrating solar panel lead assemblies or photovoltaic inline fuse connector assemblies for the U.S. market should treat these three patents as active FTO concerns. The ITC history signals that Shoals has pursued import-based enforcement — a route that can result in exclusion orders blocking product entry at the border, bypassing the need for district court infringement proceedings.
PatSnap Eureka’s FTO Search Agent allows R&D and IP teams to map claim language from all three patents against current product architectures, identify prior art that could support invalidity arguments, and surface any continuations or related applications that may extend the patent family’s reach. Running a landscape analysis now — before a new ITC investigation is filed — is materially less costly than responding to a Section 337 complaint.
Run a freedom-to-operate analysis on US11689153B2 to assess your product’s exposure
Run FTO in Eureka →Similar Federal Circuit appeals in solar and photovoltaic patent enforcement
Explore Federal Circuit appeals and ITC Section 337 cases involving solar balance-of-systems, lead assembly, and photovoltaic connector patents with comparable enforcement profiles.
What this case signals for the solar BOS and ITC appeal IP landscape
A fast voluntary withdrawal from the Federal Circuit rarely happens without a commercial driver. Here is what IP teams should take away.
Early Federal Circuit exits often signal private resolution
When parties agree to dismiss a Federal Circuit appeal within six months — before full merits briefing — it consistently suggests a licensing deal, settlement of the underlying exclusion order, or a design-around agreement. Monitoring Shoals’ subsequent enforcement activity and licensing disclosures is advisable for competitors in the utility-scale solar connector market.
ITC exclusion orders and Federal Circuit appeals require parallel tracking
This case illustrates a common pattern: an ITC exclusion order creates import risk, prompting appeal, which then resolves commercially. Companies importing solar balance-of-systems components should track both ITC Section 337 investigations and any related Federal Circuit appeals simultaneously — they can resolve on different timelines and terms.
Shoals v International — key questions answered
Shoals Technologies Group appealed an International Trade Commission decision to the Federal Circuit, asserting three patents covering solar lead assembly and PV fuse connector technology. The appeal was voluntarily dismissed by mutual agreement under Fed. R. App. P. 42(b) on 18 December 2024, with each side bearing its own costs. No merits ruling was issued.
Shoals asserted US11689153B2, US10553739B1, and US10992254B2. These patents cover lead assemblies for connecting solar panel arrays to inverters and photovoltaic inline fuse connector assemblies with integral fuses — core balance-of-systems components for utility-scale solar installations.
The public record does not specify. The court’s order records the basis of termination as ‘voluntary dismissal’ under Fed. R. App. P. 42(b) without stating whether it is with or without prejudice. This distinction is legally significant and parties affected by the underlying ITC proceedings should seek independent legal counsel on the preclusive effect of this specific order.
A Rule 42(b) dismissal terminates the appeal without any merits ruling from the Federal Circuit. The underlying ITC decision is neither affirmed nor reversed by this order. Whatever the ITC found — on infringement, validity, or exclusion — is left legally undisturbed at the appellate level. The parties’ private agreement, if any, governs the practical effect of the dismissal.
Yes. Because no Federal Circuit ruling narrowed or invalidated the asserted claims, the three Shoals patents remain issued and enforceable on their face. Solar component manufacturers and importers should not interpret the voluntary dismissal as a weakening of these patents. An FTO analysis covering US11689153B2, US10553739B1, and US10992254B2 remains advisable for any company active in the solar lead assembly or PV fuse connector market.
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