Dongguan Jiashi v. Shaopeng Guo: Vacuum Stand Design Patent Dismissed With Prejudice
Dongguan Jiashi Display Products filed suit against individual defendant Shaopeng Guo asserting design patent USD1021487S covering vacuum stand products. The action was voluntarily dismissed with prejudice after just 105 days, with each party bearing its own costs — a resolution that forecloses any refiling of the same claims.
A Rapid Exit: Design Patent Suit Ends at 105 Days With No Merits Ruling
On January 27, 2025, Dongguan Jiashi Display Products Co., Ltd., a Chinese display products manufacturer, filed a patent infringement action in the U.S. District Court for the Western District of Washington against individual defendant Shaopeng Guo. The sole patent asserted was USD1021487S (application number US29/920392), a U.S. design patent covering the ornamental design of vacuum stand products. The case was assigned to Judge James L. Robart.
The action concluded on May 12, 2025, when plaintiff filed a notice of voluntary dismissal with prejudice pursuant to Fed. R. Civ. P. 41(a)(1)(A)(i). The dismissal was unilateral — no court order was required at this procedural stage — and explicitly stated that each party shall bear its own costs and fees. Dismissal with prejudice means the plaintiff is permanently barred from reasserting the same claims against Shaopeng Guo in any future proceeding.
The 105-day duration is notably short even for voluntarily dismissed patent cases, suggesting the parties may have reached an off-record resolution — such as a licensing arrangement, a cease-and-desist compliance, or a commercial settlement — without memorializing financial terms in the public docket. The public record is silent on any underlying agreement. The ‘each party bears own costs’ provision is consistent with a negotiated exit rather than a contested adjudication.
Filing to Voluntary dismissal in 105 days
105 days — faster than typical district court patent resolution of 2–3 years
Dismissed with prejudice: what the Rule 41 exit means for both parties
Rule 41(a)(1)(A)(i): plaintiff’s right to exit without a court order
Fed. R. Civ. P. 41(a)(1)(A)(i) permits a plaintiff to dismiss an action without a court order by filing a notice before the opposing party serves an answer or motion for summary judgment. Here, the plaintiff elected to dismiss with prejudice — a stricter standard than the rule’s default — permanently extinguishing the asserted claims against this defendant. No judicial merits determination was issued.
Voluntary — no court order requiredWith prejudice: plaintiff’s claims are permanently extinguished
A dismissal with prejudice operates as a final adjudication on the merits for res judicata purposes, even though no court ruled on the substance of the infringement allegations. Dongguan Jiashi cannot refile the same patent claims (USD1021487S) against Shaopeng Guo. Whether any separate licensing or settlement agreement exists between the parties is not disclosed in the public record.
Bars refiling against this defendantGuo exits litigation with no liability finding and no cost award
Shaopeng Guo faces no court-imposed liability, damages, or injunction. The ‘each party bears own costs’ provision means Guo absorbs his own legal fees without reimbursement. However, the with-prejudice dismissal may suggest the underlying dispute was resolved commercially — the absence of a without-prejudice exit implies the plaintiff was satisfied that the specific conduct at issue had ceased or been addressed.
No liability — costs absorbed individuallyPatent remains enforceable against other market participants
USD1021487S survives fully intact. The dismissal resolves only this defendant’s exposure and carries no precedential weight on the patent’s validity or scope. Other sellers of competing vacuum stand products remain at risk of assertion. The rapid resolution with prejudice may reflect a deterrence-and-settle enforcement strategy, which is common in design patent cases targeting individual online sellers or distributors.
USD1021487S remains in forceFull party and counsel information
| Role | Name | Type | Detail |
|---|---|---|---|
| Plaintiff | Dongguan Jiashi Display Products Co Ltd | Company | Chinese display products manufacturer — holder of design patent USD1021487SSearch in Eureka ↗ |
| Defendant | Shaopeng Guo | Individual | Individual defendant Shaopeng Guo, alleged infringer of vacuum stand design patentSearch in Eureka ↗ |
| Plaintiff counsel | Carl J. Marquardt | Attorney | Counsel for Dongguan Jiashi Display Products Co LtdSearch in Eureka ↗ |
| Plaintiff counsel | Tao Liu | Attorney | Counsel for Dongguan Jiashi Display Products Co LtdSearch in Eureka ↗ |
| Plaintiff counsel | Tianyu Ju | Attorney | Counsel for Dongguan Jiashi Display Products Co LtdSearch in Eureka ↗ |
| Plaintiff counsel | Wei Wang | Attorney | Counsel for Dongguan Jiashi Display Products Co LtdSearch in Eureka ↗ |
| Plaintiff law firm | GLACIER LAW LLP (CA) | Law Firm | Representing Dongguan Jiashi Display Products Co LtdSearch in Eureka ↗ |
| Plaintiff law firm | GLACIER LAW LLP (NY) | Law Firm | Representing Dongguan Jiashi Display Products Co LtdSearch in Eureka ↗ |
| Plaintiff law firm | Law Office Of Carl J. Marquardt PLLC | Law Firm | Representing Dongguan Jiashi Display Products Co LtdSearch in Eureka ↗ |
| Defendant counsel | Hongchang Deng | Attorney | Counsel for Shaopeng GuoSearch in Eureka ↗ |
| Defendant counsel | Jianyin Liu | Attorney | Counsel for Shaopeng GuoSearch in Eureka ↗ |
| Defendant law firm | LAW OFFICES OF JAMES LIU PLLC | Law Firm | Representing Shaopeng GuoSearch in Eureka ↗ |
| Defendant law firm | Shm Law Firm | Law Firm | Representing Shaopeng GuoSearch in Eureka ↗ |
| Presiding judge | Judge James L. Robart | Judge | Washington Western District CourtSearch in Eureka ↗ |
Official order — verbatim text
The dismissal notice invokes Rule 41(a)(1)(A)(i), which permits unilateral exit before an answer is filed — indicating the case ended at the earliest procedural stage. The explicit ‘with prejudice’ election by the plaintiff is notable: it exceeds the rule’s default (without prejudice for first dismissals) and permanently bars re-assertion against Guo. The mutual cost-bearing term is consistent with a negotiated resolution, though no settlement agreement appears on the public docket.
USD1021487S — Ornamental design for a vacuum stand product
USD1021487S is a U.S. design patent, filed under application number US29/920392, protecting the ornamental appearance — not the functional mechanics — of a vacuum stand product. Design patents grant 15 years of protection from grant and are infringed when an ordinary observer would find the accused product substantially similar in overall visual impression. The patent is held by Dongguan Jiashi Display Products Co., Ltd., a Chinese manufacturer operating in the consumer display and accessories market.
Design patents covering consumer product hardware have become an increasingly important enforcement tool for Chinese manufacturers selling into or competing in U.S. e-commerce channels. USD1021487S gives Jiashi a U.S.-enforceable right that can be asserted against importers, distributors, and individual online sellers — not just competing manufacturers. The patent’s survival through this litigation (no invalidity ruling was issued) leaves its enforceability fully intact against other market participants selling visually similar vacuum stand products.
Should your vacuum stand product be cleared against USD1021487S?
Any company importing, distributing, or selling vacuum stand products — or visually similar mounting and display accessories — in the U.S. market should consider a freedom-to-operate review against USD1021487S. Because design patent infringement turns on the overall visual impression rather than claim language, the risk extends to products that differ functionally but share similar ornamental features. The dismissal in this case resolved one defendant’s exposure; it does not narrow the patent’s reach.
PatSnap Eureka’s FTO Search Agent allows R&D and product teams to map their product designs against active design patents including USD1021487S. Eureka can surface the patent’s figures, compare visual similarity against your product portfolio, and flag related design filings by the same applicant — enabling faster, more defensible FTO decisions before import or launch.
Run a freedom-to-operate analysis on USD1021487S to assess your product’s exposure
Run FTO in Eureka →Similar design patent enforcement cases in U.S. district courts
Explore comparable design patent infringement actions involving consumer product ornamental designs filed in Western District of Washington and related U.S. federal courts.
What this case signals for the consumer product design patent enforcement landscape
A 105-day with-prejudice exit suggests targeted enforcement rather than prolonged litigation — a pattern worth tracking across design patent portfolios.
Design patent enforcement against individual sellers is a low-cost, high-speed strategy
Cases like this — a corporate plaintiff asserting a design patent against an individual defendant — typically resolve quickly. The speed here (105 days) and the with-prejudice structure suggest Jiashi achieved its commercial objective without full litigation. Companies in the vacuum and display accessories space should audit their product designs against active design patent portfolios.
Each-party-bears-costs clauses signal negotiated exits, not capitulation
When a plaintiff dismisses with prejudice but waives cost recovery, it typically indicates an off-record resolution — licensing, design-around compliance, or market exit by the defendant. The public record reveals no financial terms. IP professionals should treat such dismissals as resolved disputes, not abandoned ones, when assessing enforcement posture.
Dongguan v Shaopeng — key questions answered
A dismissal with prejudice in this context means Dongguan Jiashi permanently waived its right to refile the same patent infringement claims (under USD1021487S) against Shaopeng Guo. It operates as a final adjudication on the merits for res judicata purposes, even though no court ruled on infringement or validity.
Yes. The voluntary dismissal with prejudice resolved only the claims against Shaopeng Guo and had no effect on the validity or enforceability of USD1021487S. The patent remains fully in force and can be asserted against other parties selling or importing visually similar vacuum stand products in the United States.
The plaintiff filed a notice of dismissal under Fed. R. Civ. P. 41(a)(1)(A)(i), which permits voluntary dismissal without a court order when filed before the defendant serves an answer or motion for summary judgment. The plaintiff elected to dismiss with prejudice, which is stricter than the rule’s default and permanently extinguishes the asserted claims.
This provision means neither party is entitled to recover attorney’s fees or litigation costs from the other. In patent cases, fee awards to prevailing parties are possible under 35 U.S.C. § 285 in exceptional cases. The mutual cost-bearing term here is consistent with a negotiated resolution rather than a unilateral concession, though the underlying terms — if any — are not on the public record.
USD1021487S is a U.S. design patent protecting the ornamental appearance of a vacuum stand product. Design patent infringement is assessed under the ‘ordinary observer’ test: infringement occurs if an ordinary observer, familiar with the prior art, would find the accused product substantially similar in overall visual impression to the patented design. Functional differences between products are not a defense to design patent infringement.
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