Dongguan Yanrui v. John Doe: Desk Lamp Design Patent Dismissed With Prejudice
Chinese trading company Dongguan Yanrui Trading Company, Ltd brought a design patent infringement claim over a desk lamp against an initially anonymous defendant in Michigan’s Eastern District. The parties reached a private agreement and jointly dismissed all claims with prejudice after 305 days, each side bearing its own legal costs.
Design Patent Infringement Resolved by Mutual Agreement, Bar to Refiling Set
Dongguan Yanrui Trading Company, Ltd, a Chinese manufacturer and trading entity, filed suit on 6 February 2025 in the Eastern District of Michigan against a John Doe defendant, asserting infringement of USD1044104S — a U.S. design patent covering the ornamental appearance of a desk lamp (application number US29/857640). The use of a pseudonymous defendant at filing is consistent with practice in online marketplace enforcement actions, where a seller’s true identity may be unknown at the time of filing.
The case closed on 8 December 2025 via a stipulated dismissal under Federal Rule of Civil Procedure 41(a)(1)(A)(ii). Both parties agreed to dismiss all claims against one another with prejudice, with each side bearing its own fees and costs. A dismissal with prejudice carries significant legal weight: neither party may re-litigate the same claims in federal court, and the defendant cannot be sued again on the same cause of action arising from this dispute.
The 305-day duration before resolution suggests the parties may have engaged in substantive negotiations or initial discovery before settling on terms. The mutual with-prejudice structure — including a cross-dismissal of any counterclaims — points to a negotiated exit rather than a capitulation. The absence of fee-shifting suggests neither side achieved a position strong enough to warrant seeking attorney fees. The precise financial terms, if any, of the underlying agreement remain confidential and are not disclosed in the public record.
Filing to Dismissed with Prejudice in 305 days
305 days — above the median for stipulated design patent dismissals in E.D. Mich.
Dismissed with prejudice by stipulation: what the mutual exit means
Rule 41(a)(1)(A)(ii): Stipulated dismissal with prejudice
A dismissal under Rule 41(a)(1)(A)(ii) requires the written consent of all parties. When coupled with a ‘with prejudice’ designation, the dismissal operates as a final judgment on the merits — permanently extinguishing Plaintiff’s right to re-file the same infringement claim. The mutual structure (both sides dismissing claims against each other) further evidences a negotiated, bilateral resolution rather than a unilateral withdrawal.
Permanent bar on re-filingYanrui cannot re-assert the same desk lamp claim against this defendant
By agreeing to a with-prejudice dismissal, Dongguan Yanrui Trading Company, Ltd has permanently closed this enforcement action against this specific defendant. The design patent USD1044104S itself remains valid and enforceable against third parties. However, Yanrui forfeited the ability to revive this particular action, suggesting the resolution — whether monetary or through a licensing or cease-and-desist arrangement — was acceptable to the patent holder.
Patent survives; this claim endsDefendant achieves finality and immunity from this claim
The defendant secured a with-prejudice dismissal, meaning Dongguan Yanrui cannot bring this same infringement action against them again. The cross-dismissal of all claims by both parties, combined with each side bearing its own costs, is consistent with a negotiated settlement outcome. The public record does not reveal whether any payment, licence, or behavioural undertaking was part of the underlying agreement reached between the parties.
Full finality for defendantDesign patent enforcement against online sellers: settlement as standard exit
This case reflects a common enforcement pattern: a design patent holder targets an online marketplace seller, initially named as John Doe, and resolves the dispute privately before trial. The with-prejudice mutual exit signals a commercially acceptable outcome for both sides. For other desk lamp and consumer electronics product sellers, the survival of USD1044104S as an active, enforceable patent means the risk of similar actions from Yanrui against other parties persists.
USD1044104S remains enforceableFull party and counsel information
| Role | Name | Type | Detail |
|---|---|---|---|
| Plaintiff | Dongguan Yanrui Trading Company, Ltd | Company | Chinese trading company — holder of desk lamp design patent USD1044104SSearch in Eureka ↗ |
| Defendant | John Doe | Individual | Initially anonymous online seller identified as John Doe; represented by counsel at resolutionSearch in Eureka ↗ |
| Plaintiff counsel | Jessica E. Fleetham | Attorney | Counsel for Dongguan Yanrui Trading Company, LtdSearch in Eureka ↗ |
| Plaintiff law firm | Evia Law PLC | Law Firm | Representing Dongguan Yanrui Trading Company, LtdSearch in Eureka ↗ |
| Defendant counsel | James J. Sarconi | Attorney | Counsel for John DoeSearch in Eureka ↗ |
| Defendant counsel | Matthew De Preter | Attorney | Counsel for John DoeSearch in Eureka ↗ |
| Defendant law firm | Aronberg Goldgehn | Law Firm | Representing John DoeSearch in Eureka ↗ |
| Defendant law firm | Smith & Sarconi PLC | Law Firm | Representing John DoeSearch in Eureka ↗ |
| Presiding judge | Judge N/A | Judge | Michigan Eastern District CourtSearch in Eureka ↗ |
Official order — verbatim text
The stipulated dismissal language mirrors standard Rule 41(a)(1)(A)(ii) agreed form. The mutual cross-dismissal — both sides releasing all claims with prejudice — is more protective than a one-sided plaintiff dismissal, suggesting the defendant had or anticipated counterclaims. The cost-neutrality clause (‘each side bearing its own fees and costs’) is consistent with a negotiated commercial resolution; it forecloses any subsequent fee motion under 35 U.S.C. § 285. No merits finding was made on infringement or validity.
USD1044104S — Ornamental Desk Lamp Design Patent
USD1044104S (application number US29/857640) is a U.S. design patent protecting the ornamental appearance — not functional aspects — of a desk lamp. Design patents grant a 15-year term from grant and are enforceable against any product whose appearance is substantially similar to the patented design as perceived by an ordinary observer. The application number prefix ’29/’ designates a U.S. design patent application filed with the USPTO, distinct from utility patents.
For the consumer lighting and desk accessory market — particularly sellers operating on platforms such as Amazon, Walmart Marketplace, or AliExpress — USD1044104S represents an active enforcement asset held by a Chinese trading entity with demonstrated willingness to litigate in U.S. federal court. Competitors marketing visually similar desk lamp designs should assess exposure against this patent’s published figures. The patent’s survival post-litigation means it continues to carry full enforcement weight.
Should you run an FTO analysis against USD1044104S?
Any company manufacturing, importing, or selling desk lamps into the U.S. market — particularly through online marketplaces — should consider whether their product’s ornamental design falls within the visual scope of USD1044104S. This is especially relevant for Chinese-origin manufacturers and trading companies whose products resemble the patented design. Given that Dongguan Yanrui has demonstrated readiness to file in U.S. federal court, the enforcement risk is not speculative.
PatSnap Eureka’s FTO Search Agent can map the visual and claim scope of USD1044104S against your product design, identify prior art that might support an invalidity position, and surface any related design patent family members or continuations filed by the same applicant. Running an FTO before your product reaches U.S. consumers is materially cheaper than defending a federal infringement action — even one that settles before trial.
Run a freedom-to-operate analysis on USD1044104S to assess your product’s exposure
Run FTO in Eureka →Similar Design Patent Desk Lamp Infringement Cases in U.S. District Courts
Explore comparable U.S. design patent infringement actions involving consumer lighting products filed in Michigan and other federal districts.
What this case signals for design patent enforcement in consumer product IP
John Doe design patent suits in Michigan signal a systematic marketplace enforcement strategy that warrants active monitoring by competing sellers.
Design patents on consumer products are aggressively enforced via John Doe filings
Filing against a John Doe defendant is a recognised tactic used when online marketplace sellers obscure their identities. This case confirms that holders of U.S. design patents on everyday consumer products like desk lamps are willing to litigate in federal court in Michigan. Sellers of similar products should treat design patents in this category as live enforcement risks, not theoretical ones.
With-prejudice exits signal negotiated resolution, not weakness
A mutual Rule 41 dismissal with prejudice and cost-neutrality typically suggests both parties found the resolution commercially rational. For in-house counsel, this pattern means that engaging early — rather than defaulting — can achieve finality without a merits finding. The absence of fee-shifting further suggests neither side had a dominant litigation position at the time of resolution.
Dongguan v John — key questions answered
Dismissal with prejudice in case 4:25-cv-10354 means Dongguan Yanrui permanently relinquished its right to sue this specific defendant again for infringement of USD1044104S arising from the same conduct. The defendant is fully protected from re-litigation of these claims. The patent itself, however, remains valid and enforceable against other parties.
The patent asserted was USD1044104S, a U.S. design patent with application number US29/857640, covering the ornamental design of a desk lamp. Design patents protect the visual appearance of a product rather than its functional features and carry a 15-year term from the date of grant under current U.S. patent law.
Filing against a John Doe defendant is a common tactic in online marketplace enforcement actions where the seller’s true legal identity is not publicly known at the time of filing. Courts typically allow plaintiffs to conduct early discovery to identify the real defendant. In this case, the defendant was ultimately identified and represented by counsel from Aronberg Goldgehn and Smith & Sarconi PLC by the time the case resolved.
Yes. The dismissal with prejudice in case 4:25-cv-10354 resolved claims only between Dongguan Yanrui and this specific defendant. It contains no ruling on validity or scope of USD1044104S. The patent remains an active, enforceable U.S. design patent and can be asserted against other parties whose products allegedly infringe its ornamental design.
The case was filed in the Eastern District of Michigan (4:25-cv-10354). Michigan’s Eastern District is a venue of strategic interest for product-based IP disputes given its commercial activity and judicial familiarity with manufacturing and product design litigation. The choice of venue may reflect the defendant’s location or business activity in Michigan.
PatSnap Eureka searches patents and litigation data to answer instantly.