Firestorm Labs v. Rapidflight Holdings: UAV Patent Infringement Action Dismissed
Firestorm Labs, Inc. brought a patent infringement action against Rapidflight Holdings LLC in the Southern District of California, asserting two patents covering the Firestorm UAV design. After 359 days, the parties stipulated to dismissal — plaintiff’s claims without prejudice, defendant’s counterclaims with prejudice — each side bearing its own costs.
A UAV patent dispute resolved by stipulated split dismissal
Firestorm Labs, Inc. filed this patent infringement action on 18 December 2024 in the United States District Court for the Southern District of California, case no. 3:24-cv-02387. The plaintiff asserted two patents — US11840323B2 and US11597490B1 — against Rapidflight Holdings LLC, alleging infringement tied to a UAV design described in an Aviation Week article. The accused product is identified as the ‘Firestorm design set forth in the Aviation Week article,’ suggesting the dispute centered on a specific publicly disclosed unmanned aerial vehicle configuration.
The case closed on 12 December 2025 — approximately 359 days after filing — via a court-approved stipulation of dismissal. Under the stipulation, Firestorm Labs’ infringement claims were dismissed without prejudice, preserving the plaintiff’s right to refile, while Rapidflight Holdings’ counterclaims were dismissed with prejudice, permanently extinguishing those specific claims. The court expressly ordered each party to bear its own attorney’s fees and costs, suggesting no finding of prevailing-party status on either side.
The asymmetric dismissal terms — plaintiff retains refiling rights while defendant loses counterclaims permanently — are notable and may reflect a negotiated compromise. The absence of a monetary award or fee-shifting order is consistent with a commercial settlement reached before substantive merits adjudication. The public record does not disclose whether any licensing arrangement or commercial resolution accompanied the stipulation, leaving the underlying competitive dynamic between the parties unclear.
Filing to Case Dismissed in 359 days
359 days from filing to close — slightly below average for patent cases in C.D./S.D. Cal.
Stipulated split dismissal: what the asymmetric terms mean for both parties
Split dismissal: claims without prejudice, counterclaims with prejudice
A stipulated dismissal under Federal Rule of Civil Procedure 41 allows parties to exit litigation by agreement. Here, the court granted a split arrangement: plaintiff’s infringement claims were dismissed without prejudice — meaning they can be refiled — while defendant’s counterclaims were dismissed with prejudice, barring their reassertion. This dual structure is atypical and suggests careful negotiation over the exit terms rather than a straightforward mutual walkaway.
Rule 41 stipulated dismissalFirestorm Labs retains the right to refile its infringement claims
Dismissal without prejudice preserves Firestorm Labs’ option to reassert US11840323B2 and US11597490B1 against Rapidflight Holdings — or potentially other defendants — in future proceedings, subject to applicable statutes of limitations. The plaintiff gives up nothing permanently on the merits side. This outcome is consistent with a scenario where the parties reached a commercial resolution that made continued litigation unnecessary, without requiring Firestorm to formally relinquish its patent enforcement position.
Refiling rights preservedRapidflight’s counterclaims permanently extinguished by with-prejudice dismissal
Rapidflight Holdings’ counterclaims — the specific nature of which is not detailed in the public record — were dismissed with prejudice, meaning they cannot be reasserted in future proceedings arising from the same facts. This is a meaningful concession: defendants in patent cases often assert counterclaims for invalidity or non-infringement that carry independent strategic value. Surrendering those claims with prejudice suggests Rapidflight accepted constraints as part of the negotiated resolution.
Counterclaims permanently barredUAV design patents remain live enforcement tools post-dismissal
Because the dismissal is without prejudice as to Firestorm Labs’ claims, US11840323B2 and US11597490B1 remain active, unadjudicated patents. No court has ruled on their validity or scope. For UAV manufacturers and design teams referencing the Aviation Week Firestorm configuration, the patents continue to present potential infringement exposure. The with-prejudice elimination of counterclaims also removes one potential invalidity challenge from the public record, marginally strengthening the patents’ apparent enforceability.
Patents remain active enforcement riskFull party and counsel information
| Role | Name | Type | Detail |
|---|---|---|---|
| Plaintiff | Firestorm Labs, Inc. | Company | UAV developer and patent holder — holder of US11840323B2 and US11597490B1Search in Eureka ↗ |
| Defendant | Rapidflight Holdings LLC | Company | Rapidflight Holdings LLC — UAV manufacturer and alleged infringer of Firestorm designsSearch in Eureka ↗ |
| Plaintiff counsel | Eric Rockwell Maas | Attorney | Counsel for Firestorm Labs, Inc.Search in Eureka ↗ |
| Plaintiff counsel | Fareid Aziz Asphahani | Attorney | Counsel for Firestorm Labs, Inc.Search in Eureka ↗ |
| Plaintiff counsel | Thomas Nathan Millikan | Attorney | Counsel for Firestorm Labs, Inc.Search in Eureka ↗ |
| Plaintiff law firm | Perkins Coie LLP | Law Firm | Representing Firestorm Labs, Inc.Search in Eureka ↗ |
| Defendant counsel | Melenie Van | Attorney | Counsel for Rapidflight Holdings LLCSearch in Eureka ↗ |
| Defendant counsel | Michael David Pegues | Attorney | Counsel for Rapidflight Holdings LLCSearch in Eureka ↗ |
| Defendant law firm | Polsinelli PC | Law Firm | Representing Rapidflight Holdings LLCSearch in Eureka ↗ |
| Presiding judge | Judge N/A | Judge | California Southern District CourtSearch in Eureka ↗ |
Official order — verbatim text
The court’s order mirrors the precise language of the parties’ stipulation, granting dismissal of plaintiff’s claims without prejudice while simultaneously dismissing defendant’s counterclaims with prejudice. This asymmetric structure is legally significant: no merits ruling was issued on infringement, validity, or claim scope. The with-prejudice treatment of counterclaims suggests Rapidflight formally waived any independent challenge rights it had asserted, while Firestorm Labs exited with full enforcement optionality intact. The fee-neutrality order reinforces that neither party was adjudicated a prevailing party.
US11840323B2 & US11597490B1 — Firestorm UAV design patents
US11840323B2 (application no. US18/103992) and US11597490B1 (application no. US17/559829) are the two patents asserted in this action. Both cover aspects of the Firestorm UAV design as publicly disclosed, including the airframe configuration and structural elements described in the Aviation Week article referenced in the complaint. The patents sit within the growing body of IP protecting specific unmanned aerial vehicle form factors — a technically and commercially competitive area as defence and commercial UAV programmes proliferate.
For UAV manufacturers and defence primes developing or procuring fixed-wing or hybrid UAV platforms, these patents represent active, unlitigated-to-conclusion IP covering a specific design configuration. Because no invalidity finding was issued, both patents carry their original presumption of validity. Companies whose designs were influenced by the publicly disclosed Firestorm platform — including via the Aviation Week article — face residual infringement risk that this dismissal does not extinguish.
Should you run an FTO against US11840323B2 and US11597490B1?
Any UAV developer, defence contractor, or commercial drone manufacturer whose platform design incorporates airframe or structural elements resembling the Firestorm configuration should conduct a freedom-to-operate analysis against both asserted patents. The Aviation Week article reference in the complaint suggests a publicly disclosed embodiment was used as the infringement benchmark — meaning publicly available designs may fall within the claimed scope. With plaintiff’s claims dismissed without prejudice, enforcement risk has not been eliminated.
PatSnap Eureka’s FTO Search Agent enables rapid claim-chart mapping across US11840323B2 and US11597490B1, identifying overlap with your UAV design parameters. The tool surfaces prior art that could support design-around strategies or invalidity arguments, and tracks the prosecution history of both patents for claim scope signals. R&D and IP teams working on UAV platforms can use Eureka to benchmark competitor filings in the same design space and anticipate future enforcement moves.
Run a freedom-to-operate analysis on US11840323B2 to assess your product’s exposure
Run FTO in Eureka →Similar UAV and drone patent infringement cases in US federal courts
Cases involving UAV design patent infringement claims in the Southern District of California and related federal courts, including comparable stipulated dismissal outcomes.
What this case signals for the UAV and defence tech IP landscape
A split-term stipulated dismissal in a UAV design patent dispute signals calculated leverage — and unresolved competitive tension.
Without-prejudice dismissal keeps patent enforcement pressure alive for UAV rivals
Firestorm Labs’ ability to refile means competitors referencing the Aviation Week Firestorm design cannot treat this dismissal as IP clearance. US11840323B2 and US11597490B1 remain valid, unchallenged patents. Any UAV manufacturer whose design overlaps with the asserted claims should treat this case as a signal, not a resolution.
With-prejudice counterclaim dismissal removes one invalidity route from public record
Rapidflight’s counterclaims — likely including invalidity challenges — were extinguished with prejudice. Third parties cannot rely on any merits findings from this case to challenge the asserted patents. This outcome marginally reinforces the patents’ enforceability standing and may embolden Firestorm Labs in future enforcement actions.
Firestorm v Rapidflight — key questions answered
The case was dismissed by stipulation on 12 December 2025. Firestorm Labs’ infringement claims were dismissed without prejudice — preserving the right to refile — while Rapidflight Holdings’ counterclaims were dismissed with prejudice. Each party was ordered to bear its own attorney’s fees and costs. No merits ruling on infringement or validity was issued.
Firestorm Labs asserted two patents: US11840323B2 (application no. US18/103992) and US11597490B1 (application no. US17/559829). Both relate to UAV design elements associated with the Firestorm platform, as described in the Aviation Week article referenced in the complaint.
Dismissal without prejudice means Firestorm Labs retains the right to refile its infringement claims in a future proceeding, subject to applicable statutes of limitations. The patents US11840323B2 and US11597490B1 remain valid and enforceable — no court ruling was made on their scope or validity. The dismissal does not constitute IP clearance for third parties.
The public record indicates this was agreed by stipulation between the parties. Dismissal with prejudice permanently bars Rapidflight from reasserting those specific counterclaims — likely including invalidity or non-infringement defences — in future proceedings arising from the same facts. The terms suggest this concession was part of a negotiated resolution, though no commercial agreement is disclosed in the public record.
No — the without-prejudice dismissal means no court adjudicated the validity or scope of US11840323B2 or US11597490B1. Both patents remain active and presumptively valid. UAV developers and defence contractors whose designs resemble the Firestorm configuration described in the Aviation Week article should conduct independent FTO analysis against both patents before commercialising relevant products.
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