FKA Distributing v. Reathlete: Heated Massager Patent Action Dismissed in 93 Days
FKA Distributing Co LLC brought a patent infringement claim against Reathlete LLC in the Northern District of Florida, asserting US7722553B2 over heated massager products including the NECKA and SPINA devices. The plaintiff filed a voluntary notice of dismissal without prejudice, closing the case just 93 days after filing — before the defendant had answered or engaged in substantive litigation.
Early exit: FKA Distributing drops heated massager suit against Reathlete
On February 12, 2025, FKA Distributing Co LLC filed a patent infringement action against Reathlete LLC in the United States District Court for the Northern District of Florida (Case No. 4:25-cv-00061). The suit centred on US7722553B2, a patent covering heated massager technology, with the complaint targeting Reathlete’s NECKA neck massager and SPINA back and neck massager products. FKA Distributing, represented by Peretz Chesal & Herrmann of Miami, FL, alleged those products infringed its patent rights.
The case never reached a contested stage. FKA Distributing filed a notice of voluntary dismissal without prejudice on May 16, 2025 — just 93 days after filing — citing Rule 41(a)(1)(A)(i) of the Federal Rules of Civil Procedure. Because no answer or motion for summary judgment had been served by Reathlete, the dismissal was effective immediately upon filing, requiring no court order. The court issued a confirmatory order closing the file, consistent with established Eleventh Circuit authority.
The speed of the resolution — under 100 days from filing to closure — suggests the dispute was resolved or reassessed well before any substantive litigation began. Whether the parties reached a private settlement, a licensing arrangement, or FKA Distributing simply elected to withdraw its claim for strategic reasons is not disclosed in the public record. The without-prejudice nature of the dismissal means FKA Distributing retains the right to refile the same infringement claim, so the dispute between these parties over US7722553B2 and the accused massager products cannot be considered definitively concluded.
Filing to Voluntary dismissal in 93 days
93 days — resolved before defendant answer or summary judgment motion
Voluntarily dismissed: what the Rule 41 notice means for both parties
Rule 41(a)(1)(A)(i): dismissal as of right, no court order needed
Under Federal Rule of Civil Procedure 41(a)(1)(A)(i), a plaintiff may dismiss its complaint by notice alone at any time before the defendant serves an answer or a motion for summary judgment. Because Reathlete had not yet done either, FKA Distributing’s notice was self-executing. The court’s order was confirmatory only, as the Eleventh Circuit has long recognised. No judicial merits determination was made.
Pre-answer voluntary dismissalThe public record is silent on finality — but the notice says ‘without prejudice’
FKA Distributing’s notice explicitly states dismissal without prejudice, meaning the plaintiff preserves the right to refile the same patent infringement claim against Reathlete in future. A dismissal with prejudice would have extinguished that right permanently. The distinction matters significantly for Reathlete: it cannot treat this closure as a final resolution. FKA Distributing may reassert US7722553B2 at any time within the applicable limitations period.
Refiling risk remains openFKA Distributing exits with full optionality preserved
By dismissing without prejudice, FKA Distributing retains complete flexibility: it can refile against Reathlete, pursue licensing negotiations backed by the threat of renewed litigation, or redirect enforcement efforts elsewhere. The early exit also avoids the cost and risk of contested proceedings. Nothing in the public record indicates why FKA Distributing withdrew, but the timing — before any defence was mounted — is consistent with a negotiated resolution or a strategic reassessment.
Enforcement optionality retainedReathlete escapes judgment — but faces ongoing patent exposure
Reathlete avoided a merits ruling and any injunction or damages award. However, the without-prejudice dismissal provides no permanent shield. Reathlete’s NECKA and SPINA product lines remain potentially exposed to a refiled claim under US7722553B2. Companies in this position typically use the hiatus to conduct a freedom-to-operate analysis, assess design-around options, or negotiate a licensing arrangement to reduce future litigation risk.
No permanent resolution for defendantFull party and counsel information
| Role | Name | Type | Detail |
|---|---|---|---|
| Plaintiff | FKA DISTRIBUTING CO LLC | Company | Consumer wellness and massager device IP holder — asserting US7722553B2Search in Eureka ↗ |
| Defendant | Reathlete, LLC | Company | Reathlete LLC — maker of NECKA and SPINA heated massager productsSearch in Eureka ↗ |
| Plaintiff counsel | MICHAEL BRUCE CHESAL | Attorney | Counsel for FKA DISTRIBUTING CO LLCSearch in Eureka ↗ |
| Plaintiff law firm | PERETZ CHESAL & HERRMANN – MIAMI FL | Law Firm | Representing FKA DISTRIBUTING CO LLCSearch in Eureka ↗ |
| Presiding judge | Judge N/A | Judge | Florida Northern District CourtSearch in Eureka ↗ |
Official order — verbatim text
The court’s order confirms the procedural posture precisely: FKA Distributing exercised its unconditional right under Rule 41(a)(1)(A)(i) before Reathlete served any answer or summary judgment motion. The Eleventh Circuit authority cited — Matthews v. Gaither — reinforces that the dismissal required no judicial approval. No merits findings were made; infringement, validity, and claim scope remain entirely unadjudicated. The without-prejudice designation is the operative legal fact: it preserves FKA Distributing’s cause of action in full.
US7722553B2 — heated therapeutic massager device technology
US7722553B2 (application number US11/972071) covers heated massager technology in the consumer therapeutic wellness device category. The patent’s assertion against products described as neck and back massagers with heating functionality suggests it protects core thermal massage delivery mechanisms. This type of patent — covering a combination of mechanical massage and heat application in a wearable or handheld form factor — sits at the intersection of consumer electronics and personal health devices, a sector with significant commercial volume and rapid product iteration.
For competitors and new market entrants in the heated massager and personal therapeutic device space, US7722553B2 represents an active enforcement risk. FKA Distributing’s willingness to file against a named competitor’s specific SKUs — the NECKA and SPINA — signals that the patent holder is monitoring the market and prepared to act. Any company developing or distributing heated neck or back massager products, particularly those combining vibration, compression, or percussive elements with thermal output, should assess whether their product designs fall within the claim scope of this patent.
Should your heated massager product be cleared against US7722553B2?
Any R&D team or product company developing or commercialising heated massager devices — including neck massagers, back massagers, or combined thermal and percussion devices — should treat US7722553B2 as a priority FTO target. The patent has been actively enforced against specifically named commercial products, and the without-prejudice dismissal in this case means enforcement risk has not been extinguished. Distributors and OEM suppliers operating in the personal wellness device market face equivalent exposure.
PatSnap Eureka’s FTO Search Agent allows IP and product teams to map claim language from US7722553B2 against your product specifications, review the prosecution history for scope limitations, and identify whether any continuations or related patents in FKA Distributing’s portfolio extend coverage beyond the claims in this grant. Eureka can also surface prior art and design-around pathways, helping engineering teams make informed product decisions before reaching market.
Run a freedom-to-operate analysis on US7722553B2 to assess your product’s exposure
Run FTO in Eureka →Similar heated massager and consumer wellness device patent cases
Explore comparable patent infringement actions involving heated massager and personal therapeutic device technology filed in US district courts.
What this case signals for the heated massager and wellness device IP landscape
Early voluntary dismissals in consumer wellness patent cases often signal activity happening outside the courtroom.
Without-prejudice exits are enforcement tools, not concessions
A Rule 41(a)(1)(A)(i) dismissal without prejudice costs the plaintiff nothing and preserves all future options. In the consumer wellness device sector, patent holders increasingly use early filings to initiate licensing discussions, then withdraw if terms are reached. Competitors and product teams should not read this outcome as validation of freedom to operate.
Reathlete’s product lines remain exposed pending further action
The NECKA and SPINA massagers were specifically named in the complaint. Until FKA Distributing grants a licence, enters a covenant not to sue, or the patent expires, Reathlete faces latent infringement risk. Any company distributing similar heated massager products should treat US7722553B2 as an active enforcement patent requiring FTO review.
FKA v Reathlete — key questions answered
FKA Distributing filed a notice under Rule 41(a)(1)(A)(i) dismissing its complaint without prejudice before Reathlete answered. This means the case is closed but no merits ruling was made, and FKA retains the right to refile the same infringement claim against Reathlete under US7722553B2 in the future. The dismissal is not a concession of non-infringement.
The complaint identified Reathlete LLC’s NECKA neck massager and SPINA back and neck massager as the accused products. Both are heated massager devices. The case was voluntarily dismissed before any claim construction or infringement determination was made, so no finding of infringement or non-infringement was reached.
Yes. Because the dismissal was without prejudice, FKA Distributing preserves the right to refile the patent infringement action against Reathlete within the applicable statute of limitations period. A second voluntary dismissal without prejudice would, however, operate as an adjudication on the merits under Rule 41(a)(1)(B).
The court’s order was purely confirmatory. Under Rule 41(a)(1)(A)(i) and Eleventh Circuit precedent (Matthews v. Gaither), a plaintiff’s notice of voluntary dismissal before the defendant answers is effective immediately without any judicial approval. The court issued a brief order solely to confirm closure and instruct the clerk to close the file.
US7722553B2 (filed under application number US11/972071) is a US patent held by FKA Distributing Co LLC covering heated massager technology in the consumer therapeutic device space. It was asserted in this action against heated neck and back massager products, suggesting it covers the combination of thermal and massage delivery mechanisms in personal wellness devices.
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