Dyson Technology Ltd. v. Schedule A Defendants — Hair Styling Design Patent Dispute
Dyson Technology Limited filed suit against anonymous online sellers in the Northern District of Illinois, asserting two design patents covering hair styling and hair care apparatus. The case was dismissed within 56 days — a compressed timeline consistent with the fast-moving Schedule A enforcement docket in this court.
Dyson’s design patent push against anonymous online sellers
On January 15, 2025, Dyson Technology Limited — the UK-based consumer appliance innovator and owner of a broad design patent portfolio — filed an infringement action in the Northern District of Illinois against defendants identified only as ‘The Partnerships and Unincorporated Associations Identified on Schedule A.’ The action centred on two design patents, USD0852415S and USD0853642S, both covering the ornamental appearance of hair styling and hair care apparatus. Counsel from Greer, Burns & Crain, Ltd., a Chicago firm well-practised in Schedule A e-commerce enforcement, represented Dyson.
The case was terminated on March 12, 2025, with the court recording the basis of termination as ‘Case Dismissed.’ The public record does not specify whether the dismissal was entered with or without prejudice, or whether it followed any settlement, consent order, or voluntary withdrawal by Dyson. The absence of defendant counsel on record is typical for Schedule A proceedings, where defendants are often anonymous overseas e-commerce sellers who may default, settle pre-appearance, or have their storefronts restrained before filing any response.
At 56 days from filing to closure, the case resolved faster than many Schedule A actions, which typically involve TRO and preliminary injunction phases that extend the timeline. The speed of resolution suggests a likely early resolution — whether through settlement, a consent judgment, or a voluntary dismissal after achieving the enforcement objective — though none of this can be confirmed from the public docket alone. What remains unknown is the identity of the defendants, the number of storefronts targeted, and the financial terms, if any, of the resolution.
Filing to Case Dismissed in 56 days
56-day lifespan — rapid even by Schedule A standards in N.D. Illinois
Case dismissed: what the termination means for both parties
Schedule A dismissal — enforcement tool, not defeat
In Schedule A litigation, a dismissal does not necessarily signal a plaintiff loss. Plaintiffs frequently file, obtain a TRO or asset freeze, then dismiss voluntarily once the commercial objective — delisting, settlement payment, or injunction compliance — has been achieved. The public record here notes only ‘Case Dismissed’ without specifying the procedural basis, leaving the true outcome ambiguous.
Procedural dismissalWith or without prejudice? The record is silent
A dismissal with prejudice bars Dyson from refiling against the same defendants on the same patents. A dismissal without prejudice preserves that right. The distinction is material: if Dyson obtained injunctive relief or a settlement before dismissing, a without-prejudice dismissal still achieves the enforcement goal. The available public record does not resolve this question, and practitioners should consult the full docket for any filed stipulation or court order.
Prejudice status unknownAnonymous sellers: exposure removed or liability settled?
Schedule A defendants are typically anonymous at filing and may never appear on the record. If the case was dismissed after a TRO and asset freeze, some defendants may have had funds released or storefronts restored; others may have paid settlement amounts as a condition of dismissal. Without a publicly filed consent order or settlement agreement, the specific outcome for each Schedule A defendant cannot be determined from the case record.
Defendant identity undisclosedDyson’s design patents remain active enforcement tools
The filing demonstrates that Dyson actively monitors online marketplaces for design patent infringement in the hair care appliance sector. USD0852415S and USD0853642S remain in force and have now been asserted in federal court. E-commerce sellers — and legitimate competitors — offering hair styling apparatus with similar ornamental designs face elevated litigation risk. The N.D. Illinois Schedule A docket continues to be a favoured venue for this type of design patent enforcement action.
Active design patent riskFull party and counsel information
| Role | Name | Type | Detail |
|---|---|---|---|
| Plaintiff | Dyson Technology Limited | Individual | Consumer appliance innovator — holder of design patents USD0852415S and USD0853642SSearch in Eureka ↗ |
| Defendant | The Partnerships and Unincorporated Associations Identified on Schedule A | Individual | Anonymous online marketplace sellers identified via Schedule A — typical e-commerce enforcement defendantsSearch in Eureka ↗ |
| Plaintiff counsel | Andrew Daniel Burnham | Attorney | Counsel for Dyson Technology LimitedSearch in Eureka ↗ |
| Plaintiff counsel | Justin R. Gaudio | Attorney | Counsel for Dyson Technology LimitedSearch in Eureka ↗ |
| Plaintiff counsel | Justin Tyler Joseph | Attorney | Counsel for Dyson Technology LimitedSearch in Eureka ↗ |
| Plaintiff counsel | Lawrence J. Crain | Attorney | Counsel for Dyson Technology LimitedSearch in Eureka ↗ |
| Plaintiff law firm | Greer, Burns & Crain, Ltd. | Law Firm | Representing Dyson Technology LimitedSearch in Eureka ↗ |
| Presiding judge | Judge LaShonda A. Hunt | Judge | Illinois Northern District CourtSearch in Eureka ↗ |
Official order — verbatim text
The verdict record references a January 16, 2025 filing — one day after the complaint — consistent with a TRO or emergency injunctive motion filed immediately upon commencement, a standard practice in Schedule A litigation. The basis of termination, ‘Case Dismissed,’ without further qualification, reflects the opacity typical of these proceedings. No merits determination was made; the case terminated before any substantive adjudication of the design patent infringement claims.
USD0852415S & USD0853642S — Hair Styling Apparatus Design Patents
USD0852415S (application no. US29/627707) and USD0853642S (application no. US29/627749) are US design patents assigned to Dyson Technology Limited, protecting the ornamental appearance of hair styling and hair care apparatus. Design patents in the US protect visual characteristics — shape, configuration, and ornamentation — rather than functional features. The sequential application numbers suggest the two patents were filed in close proximity, likely protecting related but distinct design embodiments of Dyson’s hair care product line.
For Dyson, design patents in the hair styling category carry significant commercial weight given the brand’s premium positioning and the high volume of counterfeit and lookalike products on e-commerce platforms. The assertion of these patents against Schedule A defendants underscores their role as active enforcement instruments. For competitors and platform sellers, the existence of two asserted design patents — rather than one — raises the scope of ornamental protection and complicates design-around strategies. Any product with a similar overall visual impression to the protected Dyson design is potentially within the infringement perimeter.
Should you run an FTO against USD0852415S and USD0853642S?
If your company designs, manufactures, imports, or sells hair styling or hair care apparatus — particularly for online marketplace channels — these two Dyson design patents warrant direct attention. The Schedule A enforcement model means litigation can be filed with a TRO motion on the same day, potentially freezing your payment accounts before you are even aware of the suit. An FTO assessment focused on ornamental design similarity is the most effective pre-market risk mitigation step available.
PatSnap Eureka’s FTO Search Agent can map the visual scope of USD0852415S and USD0853642S against your product designs, identify prior art that may limit Dyson’s design patent claims, and surface related Dyson design filings that could form part of a broader enforcement campaign. Eureka’s litigation monitoring tools also flag new Schedule A filings in N.D. Illinois, giving product and legal teams early warning of emerging enforcement actions in the hair care appliance sector.
Run a freedom-to-operate analysis on USD0852415S to assess your product’s exposure
Run FTO in Eureka →Similar design patent Schedule A cases in hair care and appliances
Explore analogous Schedule A design patent infringement actions in the N.D. Illinois involving consumer appliances and personal care devices.
What this case signals for the hair care appliance IP landscape
Dyson’s Schedule A filing in N.D. Illinois is part of a broader pattern of design patent enforcement against online counterfeit and infringing sellers.
N.D. Illinois remains the preferred venue for Schedule A design enforcement
The Northern District of Illinois has become a go-to court for brand owners pursuing anonymous online sellers. Its familiarity with TRO procedures, asset freezes, and expedited discovery makes it attractive for plaintiffs like Dyson seeking rapid injunctive relief against e-commerce infringers.
Dyson’s design patent portfolio is actively policed — monitor carefully
The assertion of USD0852415S and USD0853642S signals that Dyson treats its hair styling apparatus design patents as enforceable commercial assets, not just defensive filings. Any company selling hair care devices with ornamental similarities to Dyson products in online marketplaces should treat this case as a credible enforcement signal.
Limited v Partnerships — key questions answered
Dyson Technology Limited asserted two US design patents: USD0852415S (application no. US29/627707) and USD0853642S (application no. US29/627749), both covering the ornamental design of hair styling and hair care apparatus.
The case was dismissed 56 days after filing. In Schedule A litigation, rapid dismissals are common and do not necessarily indicate a plaintiff loss. Dyson may have obtained a TRO, asset freeze, or settlement before dismissing. The public record does not specify the precise reason or whether the dismissal was with or without prejudice.
Schedule A defendants are anonymous online marketplace sellers — typically operating across platforms like Amazon, eBay, or AliExpress — whose identities are initially sealed. Plaintiffs file suit against a sealed list, then serve process and seek injunctive relief while defendants remain publicly unnamed until later stages of proceedings.
No. A case dismissal — particularly in Schedule A litigation — carries no implication about patent validity. USD0852415S and USD0853642S remain in force as granted US design patents. The dismissal reflects a procedural termination of this specific action, not a merits ruling on the patents.
This case was filed in the Northern District of Illinois, before Judge LaShonda A. Hunt. N.D. Illinois is one of the most active courts for Schedule A e-commerce enforcement due to its established procedures for TROs, asset freezes, and expedited third-party discovery against online marketplace platforms.
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