1:26-cv-01726
Bounce Curl LLC v. Partnerships Unincorp Associations
I. Executive Summary and Procedural Information
- Parties & Counsel:
- Plaintiff: Bounce Curl, LLC (Arizona)
- Defendant: z1989090 (Jurisdiction unknown, alleged to be People's Republic of China or other foreign jurisdiction)
- Plaintiff’s Counsel: Greer, Burns & Crain, Ltd.
- Case Identification: 1:26-cv-01726, N.D. Ill., 02/17/2026
- Venue Allegations: Venue is based on allegations that the Defendant operates a fully interactive e-commerce store that targets consumers in the United States, including Illinois, offers shipping to Illinois, and has sold the accused products to residents of Illinois.
- Core Dispute: Plaintiff alleges that Defendant’s hairbrush, sold via an e-commerce store, infringes a design patent for an ornamental hairbrush design.
- Technical Context: The dispute is in the consumer personal care products industry, specifically concerning the ornamental design of hair styling tools.
- Key Procedural History: The complaint does not mention any prior litigation, licensing history, or other significant procedural events related to the patent-in-suit.
Case Timeline
| Date | Event |
|---|---|
| 2023-07-28 | U.S. Patent No. D1,028,527 Priority Date |
| 2024-05-28 | U.S. Patent No. D1,028,527 Issued |
| 2026-02-17 | Complaint Filed |
II. Technology and Patent(s)-in-Suit Analysis
U.S. Patent No. D1,028,527 - "HAIR BRUSH"
The Invention Explained
- Problem Addressed: As a design patent, the ’527 Patent does not address a technical or functional problem. Instead, it protects the novel, non-obvious, and ornamental appearance of an article of manufacture—in this case, a hairbrush (D1,028,527, claim). The patent aims to secure rights to a unique visual identity for the product in the marketplace (Compl. ¶9).
- The Patented Solution: The patent discloses a specific ornamental design for a hairbrush, characterized by the combination of several visual features shown in its figures (D1,028,527, FIGS. 1-7). These features include a handle that tapers to a point, a brush head with distinctive scalloped side edges, rows of bristles situated on raised longitudinal ridges, a forked or multi-pronged shape at the distal end of the brush head, and a ribbed structure on the underside of the head (D1,028,527, FIGS. 1; D1,028,527, FIG. 4; D1,028,527, FIG. 5).
- Technical Importance: The complaint alleges that the patented designs are distinctive and widely recognized by consumers, associating the unique aesthetic with the quality and innovation of the Plaintiff's brand (Compl. ¶9).
Key Claims at a Glance
- The patent asserts a single claim for "The ornamental design for a hair brush, as shown and described" (D1,028,527, claim).
- The scope of this claim is defined by the visual appearance of the hairbrush depicted in the patent's seven figures. Key ornamental elements comprising the overall design include:
- The overall shape and proportion of the brush and handle.
- The scalloped contour along the lateral edges of the brush head base.
- The arrangement of bristles in rows on raised platforms.
- The pronged feature at the end of the brush head.
- The pointed, "rat-tail" style handle.
- The channeled or ribbed configuration of the brush head's underside.
III. The Accused Instrumentality
Product Identification
The accused products are hairbrushes (the "Infringing Products") allegedly made, used, offered for sale, sold, or imported by Defendant operating under the seller alias "z1989090" (Compl. ¶3).
Functionality and Market Context
The complaint alleges Defendant operates a sophisticated e-commerce store that targets U.S. consumers and is designed to appear as an authorized retailer, making it difficult for consumers to distinguish it from legitimate sales channels (Compl. ¶16). The complaint focuses on the product's appearance rather than its function, alleging it embodies Plaintiff's patented design (Compl. ¶3; Compl. ¶25). A table in the complaint presents several figures from the '527 patent, including a perspective view that illustrates the overall ornamental design of the hairbrush at issue (Compl. p. 4).
IV. Analysis of Infringement Allegations
Claim Chart Summary
The complaint does not provide a formal claim chart. The core allegation is that the Defendant's "Infringing Products" are the "same unauthorized and unlicensed product" that infringes the design claimed in the '527 patent (Compl. ¶3). For a design patent, infringement is assessed from the perspective of an "ordinary observer." The following table conceptualizes the allegation by breaking down the holistic design into its constituent visual features.
D1,028,527 Infringement Allegations
| Claim Element (from "as shown and described") | Alleged Infringing Functionality | Complaint Citation | Patent Citation |
|---|---|---|---|
| The overall ornamental design for a hair brush | The complaint alleges the accused "Infringing Products" are the "same" as the product embodying Plaintiff's patented design, thereby infringing the ornamental design claimed in the '527 patent. | ¶3; ¶25 | FIGS. 1-7 |
Identified Points of Contention
- Factual Question: The central issue in a design patent case is whether an ordinary observer, familiar with the prior art, would be deceived into purchasing the accused product believing it to be the patented one. The complaint makes a conclusory allegation of infringement without providing side-by-side visual comparisons of the patented design and the accused product. The primary point of contention will be the degree of visual similarity between the Defendant's hairbrush and the design claimed in the '527 patent's figures.
- Evidentiary Question: A key question will be what evidence Plaintiff can produce to establish the specific design of the product sold by the anonymous Defendant and compare it to the patented design.
V. Key Claim Terms for Construction
In design patent litigation, claim construction is generally not a central issue, as the single claim's scope is defined by the patent's drawings rather than textual limitations. The analysis focuses on the overall visual impression of the design as shown in the figures.
VI. Other Allegations
Indirect Infringement
The complaint alleges that the Infringing Products "infringe directly and/or indirectly the ornamental design" (Compl. ¶25) and the prayer for relief seeks to enjoin "aiding, abetting, contributing to, or otherwise assisting" infringement (Compl., Prayer for Relief ¶1(b)). However, the complaint does not plead specific facts to support the knowledge and intent elements required for claims of induced or contributory infringement.
Willful Infringement
The complaint alleges that Defendant's infringement was willful (Compl. ¶22) and that Defendant acted "knowingly and willfully" (Compl. ¶21). The factual basis appears to be the general course of conduct, including the operation of an e-commerce store that allegedly trades upon Plaintiff's reputation (Compl. ¶3) and employs tactics to conceal the operator's identity (Compl. ¶12; Compl. ¶18).
VII. Analyst’s Conclusion: Key Questions for the Case
- A core issue will be one of visual comparison: would an ordinary observer, giving such attention as a purchaser usually gives, be deceived by the similarity between the accused hairbrush and the design depicted in the '527 patent, leading them to purchase the former supposing it to be the latter?
- A critical practical question will concern jurisdiction and enforcement: can the Plaintiff successfully identify, serve, and enforce a potential judgment against an anonymous e-commerce operator allegedly based in a foreign jurisdiction (Compl. ¶11) and who purportedly uses tactics to conceal their identity and assets (Compl. ¶12; Compl. ¶20)?