McCarter v. Milkmen Design: Saucemoto Patent Suit Dismissed Without Prejudice
Zevon McCarter filed suit against Milkmen Design, LLC in the Middle District of Florida alleging infringement of US10604054B1 — a patent covering a window-mounted condiment holder marketed as the Saucemoto. The case collapsed procedurally after the plaintiff failed to appear at a case management conference and never responded to a subsequent show-cause order, resulting in dismissal without prejudice after 307 days.
A procedural collapse: how a condiment-holder patent suit self-destructed
On February 18, 2025, Zevon McCarter filed a patent infringement action against Milkmen Design, LLC in the U.S. District Court for the Middle District of Florida (Case No. 8:25-cv-00402). The asserted patent, US10604054B1, covers a window-mounted adapter designed to hold condiment cups in a vehicle — commercialised under the Saucemoto brand. McCarter, appearing to have represented himself as plaintiff agent, alleged that Milkmen Design infringed this patent through its own condiment-holder product.
The case never reached substantive adjudication. On November 5, 2025, Magistrate Judge Thomas P. Barber issued a show-cause order after McCarter failed to appear at a scheduled case management conference. With a response deadline of December 5, 2025, McCarter filed nothing. On December 22, 2025, Judge Barber dismissed the case without prejudice for lack of prosecution, directing the Clerk to terminate all pending motions and deadlines. A dismissal without prejudice preserves McCarter’s right to refile the action, provided any applicable statute of limitations has not expired.
The 307-day duration — from filing to dismissal — is notable given that the case appears to have stalled well before any significant motion practice or claim construction. The public record does not disclose what caused McCarter’s non-appearance or silence; possibilities include settlement outside the docket, loss of interest, or resource constraints consistent with a pro se or lightly-resourced plaintiff. Milkmen Design was represented by Sand & Sebolt LPA, suggesting the defendant had organised legal support throughout, which may have influenced the plaintiff’s calculus on continued prosecution.
Filing to Dismissed without Prejudice in 307 days
307 days — longer than the median voluntary dismissal, ended by procedural default
Dismissed without prejudice: what the ruling means for both parties
Lack of prosecution dismissal: a procedural, not merits, ending
A dismissal for lack of prosecution under Fed. R. Civ. P. 41 is triggered when a plaintiff fails to advance their own case — here, by missing a case management conference and ignoring a show-cause order. Critically, this is not a ruling on whether US10604054B1 is valid or infringed. The court made no substantive determination; it simply closed the docket after the plaintiff went silent.
No merits decidedWithout prejudice leaves the door open — but complications remain
McCarter retains the theoretical right to refile suit against Milkmen Design on the same patent. However, refiling after a prior dismissal for non-prosecution typically draws heightened judicial scrutiny. Any new action would need to demonstrate active prosecution. The passage of time may also affect evidence preservation, witness availability, and the damages window. The public record gives no indication of whether McCarter intends to pursue the matter further.
Refile possibleMilkmen Design escapes judgment — but US10604054B1 remains live
Milkmen Design secured dismissal without expending litigation resources on a merits defence, which is the best procedural outcome a defendant can achieve. However, because no invalidity or non-infringement ruling was entered, the patent survives unchallenged. Milkmen Design cannot rely on this case as precedent that it does not infringe US10604054B1, and the threat of a refiled action — or a new assertion by a different patent holder — cannot be ruled out.
No preclusion on meritsPatent cloud over the vehicle condiment-holder market persists
US10604054B1 has now been asserted in litigation but never adjudicated, leaving its validity and scope untested by a court. For competitors and product designers in the automotive accessories space — particularly those developing in-vehicle storage or condiment-holder products — this patent continues to represent a live enforcement risk. The dismissal without prejudice does nothing to narrow claim scope or create an invalidity record that third parties could rely upon.
Patent remains enforceableFull party and counsel information
| Role | Name | Type | Detail |
|---|---|---|---|
| Plaintiff | Zevon McCarter | Individual | Individual plaintiff and apparent inventor — holder of US10604054B1 (Saucemoto)Search in Eureka ↗ |
| Defendant | Milkmen Design, LLC | Company | Milkmen Design, LLC — product design company accused of condiment-holder patent infringementSearch in Eureka ↗ |
| Plaintiff counsel | Zevon McCarter | Attorney | Counsel for Zevon McCarterSearch in Eureka ↗ |
| Defendant counsel | Howard L. Wernow | Attorney | Counsel for Milkmen Design, LLCSearch in Eureka ↗ |
| Defendant law firm | Sand & Sebolt LPA | Law Firm | Representing Milkmen Design, LLCSearch in Eureka ↗ |
| Presiding judge | Judge N/A | Judge | Florida Middle District CourtSearch in Eureka ↗ |
Official order — verbatim text
The dismissal order is tightly procedural: Judge Barber’s language — ‘dismissed without prejudice for lack of prosecution’ — confirms the court made no substantive ruling on infringement, validity, or claim construction. The show-cause mechanism signals the court had already flagged McCarter’s disengagement before issuing the final order. For Milkmen Design, the absence of any prejudice finding means no collateral estoppel attaches; for McCarter, no res judicata bars a future action on the same patent against the same defendant, subject to applicable time limits.
US10604054B1 — Vehicle window-mounted condiment holder adapter
US10604054B1, filed under application number US16/232457, protects a window adapter device designed to hold condiment cups inside a vehicle — the product commercialised as the Saucemoto. The patent covers the mechanical interface between a vehicle window and a condiment-holding receptacle, addressing the functional problem of in-vehicle sauce cup spillage. As a B1 grant with no published pre-grant application, the prosecution history is compact, and the issued claims define the enforceable scope without the benefit of a prior published application record for competitors to review.
In the automotive accessories and quick-service restaurant convenience-products space, a granted patent on a simple mechanical adapter can command a meaningful licensing position if claims are broadly drafted. US10604054B1 has been asserted in active litigation, confirming the patentee views it as commercially valuable. For any brand selling in-vehicle condiment or cup-holder products — particularly those targeting the drive-through consumer segment — this patent represents a monitoring priority. The fact that no court has yet scrutinised its validity makes it simultaneously a risk and an opportunity: a well-resourced challenger might find prior art grounds through an IPR petition.
Should you run an FTO analysis against US10604054B1?
If your product team is developing any accessory designed to hold cups, condiment containers, or food items inside a vehicle — particularly products that interface with a vehicle window or door — US10604054B1 is a mandatory FTO reference. The Saucemoto litigation confirms the patent holder is willing to assert the patent commercially. Even though this case ended without a merits ruling, the patent remains in force and the claims have not been construed or invalidated. Product managers and R&D leads in automotive accessories, QSR convenience products, or in-vehicle storage should not launch without a documented FTO review.
PatSnap Eureka’s FTO Search Agent can map your product’s technical features against the claims of US10604054B1, surface any prior art that may weaken the patent’s scope, and identify design-around opportunities before you go to market. Eureka’s claim-charting tools allow your IP team to annotate independent and dependent claims against your product specification, generating a defensible FTO record. For early-stage product teams, Eureka can also monitor any continuation applications or related family members of US10604054B1 that may extend the patent’s coverage into adjacent claim territory.
Run a freedom-to-operate analysis on US10604054B1 to assess your product’s exposure
Run FTO in Eureka →Similar patent suits: automotive accessories & mechanical consumer product IP
Explore patent infringement cases in the Florida Middle District and federal courts involving mechanical consumer accessories, in-vehicle products, and solo-inventor enforcement actions.
What this case signals for automotive accessories IP enforcement
A solo inventor asserting a consumer-product patent faces structural disadvantages — this case illustrates how quickly a claim can collapse without sustained litigation support.
Pro se or resource-constrained plaintiffs create unstable enforcement environments
When an individual inventor litigates without a retained firm, the case can evaporate procedurally — as it did here — without any resolution on the merits. Defendants facing such suits should weigh early resolution strategies against the possibility the case simply collapses, as Milkmen Design’s outcome suggests.
Dismissal without prejudice is not a clean bill of health for defendants
US10604054B1 was never ruled invalid or not infringed. Milkmen Design and any other competitor in the window-mounted condiment-holder category should treat this patent as a continuing enforcement risk and consider whether an IPR or ex parte reexamination would provide a more durable defensive posture.
McCarter v Milkmen — key questions answered
No. The case was dismissed without prejudice for lack of prosecution before any substantive ruling was issued. Judge Barber’s order made no finding on infringement, validity, or claim scope. US10604054B1 remains a live, enforceable patent with its claims entirely unconstrued by any court.
Yes. A dismissal without prejudice does not bar McCarter from refiling the same infringement claim against Milkmen Design, provided the applicable statute of limitations has not expired. Under 35 U.S.C. § 286, damages are limited to six years before the filing date. Milkmen Design cannot rely on this dismissal as a defence of claim preclusion or res judicata in any future action.
The case was dismissed because plaintiff Zevon McCarter failed to appear at a scheduled case management conference. The court issued a show-cause order on November 5, 2025, giving McCarter until December 5 to explain the non-appearance. No response was filed, and Judge Barber dismissed the case for lack of prosecution on December 22, 2025.
US10604054B1 covers a window adapter device designed to hold condiment cups inside a vehicle, commercialised under the Saucemoto brand. The patent addresses the mechanical interface between a vehicle window and a condiment receptacle. The application number is US16/232457. Because no claim construction order was entered in this litigation, the precise enforceable scope remains open to interpretation.
Milkmen Design, LLC was represented by Sand & Sebolt LPA, with Howard L. Wernow listed as the defendant agent. The plaintiff, Zevon McCarter, appears to have proceeded without a retained law firm based on the public record, which lists McCarter himself as the plaintiff agent — a factor that may have contributed to the procedural collapse of the case.
PatSnap Eureka searches patents and litigation data to answer instantly.