Dyson Wins Default Judgment in Hair Dryer Design Patent Case

Introduction

In a swift enforcement action concluded in just 64 days, Dyson Technology Limited secured a default judgment against a broad class of unnamed defendants in the Northern District of Illinois, reinforcing the consumer electronics giant’s aggressive posture in protecting its iconic product designs. Case No. 1:25-cv-14683 centered on U.S. Design Patent USD715996S (corrected application number US29/485993), covering a hair dryer design — one of Dyson’s most commercially significant and visually distinctive product lines.

The court’s grant of Dyson’s Motion for Entry of Default and Default Judgment against all remaining defendants signals a familiar but strategically important pattern: major IP holders leveraging Schedule A complaint procedures to rapidly neutralize large networks of alleged counterfeit or infringing sellers, often operating through e-commerce platforms. For patent attorneys, in-house IP counsel, and R&D professionals in the consumer electronics space, this outcome offers meaningful lessons in design patent enforcement, litigation velocity, and marketplace protection strategy.

Case Overview

The Parties

The Patent at Issue

This case centered on U.S. Design Patent USD715996S (Corrected Application No. US29/485993), covering a specific ornamental design of a hair dryer. Design patents, registered with the U.S. Patent and Trademark Office (USPTO), protect the unique visual appearance of a product rather than its functional features.

• • US D715,996S — Ornamental design of a hair dryer

The Accused Product

The accused products were hair dryers alleged to infringe Dyson’s registered design patent. These typically consisted of low-cost imitations sold through third-party online platforms that closely replicated the protected design.

Legal Representation

Plaintiff’s Counsel: Greer, Burns & Crain, Ltd. — a Chicago-based IP litigation firm specializing in e-commerce brand enforcement and Schedule A litigation. Attorneys of record included Justin R. Gaudio, Justin Tyler Joseph, Lawrence J. Crain, and Lucas Allen Peterson. No defense counsel appeared on record, consistent with a default judgment outcome.

Litigation Timeline & Procedural History

The complaint was filed on December 3, 2025, in the U.S. District Court for the Northern District of Illinois — a preferred venue for Schedule A intellectual property enforcement actions due to its established procedural familiarity with this case type and its efficient handling of ex parte temporary restraining orders (TROs) and asset freezes.

The case was presided over by Chief Judge Jorge L. Alonso. The matter resolved at the first-instance (district court) level with no appeal recorded.

The 64-day resolution is notably rapid, consistent with default judgment timelines in Schedule A cases where defendants fail to appear or respond. The filing of Docket Entry [38] — Plaintiff’s Motion for Entry of Default and Default Judgment — was granted as to all remaining defendants, closing the case on February 5, 2026. No specific damages figure was publicly disclosed in the available case data.

The Verdict & Legal Analysis

Outcome

The court granted Dyson’s Motion for Entry of Default and Default Judgment as to all remaining defendants (Docket No. [38]). This is a dispositive resolution in Dyson’s favor, entered because the named defendants failed to respond to the complaint or otherwise appear in the litigation. The case was closed at the first-instance level with no further proceedings required.

While the specific damages award was not disclosed in available case data, default judgments in design patent cases can include statutory damages, actual damages, lost profits, and injunctive relief depending on the relief requested in the plaintiff’s complaint.

Verdict Cause Analysis

The basis for the action was patent infringement of a U.S. design patent. In design patent infringement cases, the operative legal standard is the “ordinary observer” test established in Egyptian Goddess, Inc. v. Swisa, Inc., 543 F.3d 665 (Fed. Cir. 2008). Under this standard, infringement is found when an ordinary observer, familiar with the prior art, would be deceived into believing the accused design is the same as the patented design.

Because no defendants appeared, the court accepted Dyson’s factual allegations as admitted — a standard consequence of default under Federal Rule of Civil Procedure 55. The absence of any validity challenge or claim construction dispute meant the case proceeded without contested technical proceedings.

Key Procedural Point: The Schedule A complaint structure — naming defendants collectively by reference to a separately filed schedule — is a tactical tool that allows plaintiffs to consolidate enforcement against numerous sellers in a single proceeding, reducing litigation costs while maximizing enforcement breadth.

Legal Significance

This case reinforces several important principles for design patent practitioners:

• • Design patents are powerful enforcement instruments against marketplace copycats, particularly when the patented design is visually distinctive and commercially iconic — as with Dyson’s hair dryer.
• • Default judgment is a viable and frequently achieved outcome in Schedule A litigation, particularly against anonymous e-commerce sellers who lack resources or incentive to defend.
• • The Northern District of Illinois remains a premier jurisdiction for this enforcement model, offering procedural efficiency and judicial familiarity with the Schedule A approach.

Strategic Takeaways

For Patent Holders:

• • Design patent registration provides a streamlined enforcement path, especially when product appearance is a core competitive differentiator.
• • Schedule A procedures in the Northern District of Illinois offer cost-effective, rapid resolution against large defendant pools.
• • Proactive TRO and asset freeze motions at case inception are standard practice to prevent asset dissipation by marketplace defendants.

For Accused Infringers:

• • Failure to respond results in default judgment — even a limited appearance to contest damages is strategically preferable to non-response.
• • Design-around analysis should focus on the ornamental elements specifically claimed, as design patents do not protect functional features.

Industry & Competitive Implications

Dyson’s enforcement action fits within a well-documented pattern of premium consumer electronics brands aggressively policing their design IP against low-cost marketplace competitors. The hair care appliance market — in which Dyson occupies a premium segment with products retailing in the hundreds of dollars — is particularly susceptible to design imitation given the high visual salience of product aesthetics as a purchase driver.

The Schedule A litigation model has become a standard tool for brand owners combating e-commerce marketplace infringement, and this case reflects the broader industry trend of using consolidated IP enforcement proceedings to address platform-based infringement at scale. Companies operating in the consumer electronics, personal care, and home appliance sectors should treat this case as a data point in an ongoing enforcement landscape.

For competitors and new market entrants, the case underscores the reputational and legal risk of designs that approach Dyson’s registered ornamental configurations — even where functional differences exist.