ABC Corp v. Partnerships Unincorp Associations

I. Executive Summary and Procedural Information

• Parties & Counsel:
  • Plaintiff: Guangzhou Youran Network Technology Co., Ltd. (People's Republic of China)
  • Defendant: Partnerships and Unincorporated Associations Identified on Schedule A (Foreign Jurisdictions)
  • Plaintiff's Counsel: Kaushik & Associates, PLLC
• Case Identification: 1:26-cv-05411, N.D. Ill., 08/17/2026
• Venue Allegations: Plaintiff alleges venue is proper because the defendants are not residents of the United States and may be sued in any judicial district.
• Core Dispute: Plaintiff alleges that Defendants' online sales of certain belt buckles infringe a U.S. design patent covering the ornamental appearance of a belt buckle.
• Technical Context: The dispute concerns the ornamental design of consumer accessory hardware, specifically quick-release or tactical-style belt buckles sold through online marketplaces.
• Key Procedural History: The complaint focuses heavily on justifying the joinder of multiple defendants, alleging they are part of the same series of transactions based on the use of identical product photographs and shared registered business addresses.

Case Timeline

Date	Event
2021-06-07	U.S. Design Patent No. D955,920 Application Filing Date
2022-06-28	U.S. Design Patent No. D955,920 Issued
2026-08-17	Complaint Filed

II. Technology and Patent(s)-in-Suit Analysis

U.S. Design Patent No. D955,920 - "Belt buckle"

• Patent Identification: U.S. Design Patent No. D955,920, "Belt buckle," issued June 28, 2022.

The Invention Explained

• Problem Addressed: The patent does not describe a technical problem, as is typical for design patents. Instead, it addresses the need for a unique and aesthetically distinct ornamental appearance for a belt buckle.
• The Patented Solution: The patent protects the specific visual appearance of a two-part, quick-release style belt buckle as depicted in its nine figures '920 Patent, Figs. 1-9 The claimed design features a lower, rounded-rectangular portion that receives an upper portion '920 Patent, Fig. 1 The upper portion includes two flared, triangular tabs that appear to function as release triggers, a central circular element, and a distinct arrangement of three visible rivets or fasteners '920 Patent, Fig. 1 '920 Patent, Fig. 7 The overall impression is one of a squared, near-symmetrical, and mechanically-styled buckle.
• Technical Importance: The design contributes to the visual identity and consumer appeal of a functional product in the competitive market for tactical and fashion accessories Compl. ¶20 Compl. ¶34

Key Claims at a Glance

• The patent contains a single claim: "The ornamental design for a belt buckle, as shown and described." '920 Patent, claim Compl. ¶30
• The scope of this claim is defined by the visual representations in Figures 1 through 9 of the patent.

III. The Accused Instrumentality

Product Identification

The accused instrumentalities are "belt buckles" advertised, offered for sale, and sold by Defendants through e-commerce storefronts on Amazon and other online marketplaces Compl. ¶3 Compl. ¶35

Functionality and Market Context

• The complaint describes the accused products as belt buckles that embody an ornamental design substantially the same as the one claimed in the '920 Patent Compl. ¶35
• Plaintiff alleges that Defendants are foreign entities operating under various seller aliases to sell these products directly to consumers in the United States, including in Illinois Compl. ¶3 Compl. ¶9 The complaint suggests a coordinated effort among certain defendants, who allegedly use identical product photography and share registered addresses, to sell the same accused product from a common source Compl. ¶¶61-64

IV. Analysis of Infringement Allegations

Design patent infringement is determined by the "ordinary observer" test, which asks whether an ordinary observer, familiar with the prior art, would be deceived into believing the accused design is the same as the patented design Compl. ¶37 The complaint breaks down the alleged similarities into specific visual features.

No probative visual evidence provided in complaint.

Claim Chart Summary

The following table summarizes the infringement allegations by mapping the specific ornamental features identified in the complaint to the patent's figures.

D955,920 Infringement Allegations

Claim Element (from the ornamental design "as shown and described")	Alleged Infringing Functionality	Complaint Citation	Patent Citation
The overall ornamental design for a belt buckle	The accused products allegedly reproduce the features of the claimed design as a whole, creating a design that is substantially the same.	¶36	Figs. 1-9
A squared near-symmetric buckle body	The complaint alleges the accused products feature this overall body shape.	¶36	Fig. 1
Flared triangular fin tabs projecting laterally from the upper plate	The complaint alleges the accused products incorporate these distinctive release tabs.	¶36	Fig. 1
A three-rivet arrangement on the upper plate	The complaint alleges the accused products reproduce this specific fastener pattern.	¶36	Fig. 1
A rounded-rectangular lower plate	The complaint alleges the accused products include this corresponding lower component.	¶36	Fig. 7

Identified Points of Contention

• Scope Questions: The central question for the court will be the application of the ordinary observer test. This will involve comparing the overall visual impression of the accused products with the design claimed in the '920 Patent, considering any relevant prior art designs that may limit the scope of protection.
• Technical Questions: A factual question may arise regarding the source of the accused products. The complaint alleges that the use of identical, pixel-for-pixel photographs by different defendants indicates they are selling the same accused product from a common source Compl. ¶61 Compl. ¶62

V. Key Claim Terms for Construction

The single claim of the design patent refers only to the design "as shown and described." As there are no textual limitations or terms of art requiring construction, this analysis is not applicable.

VI. Other Allegations

Indirect Infringement

The complaint does not provide sufficient detail for analysis of indirect infringement. The allegations are framed as direct infringement under 35 U.S.C. § 271(a) Compl. ¶70

Willful Infringement

The complaint does not contain specific factual allegations to support a claim for willful infringement, although it does request attorneys' fees under 35 U.S.C. § 285, which is awarded in "exceptional cases" Compl. Prayer for Relief G

VII. Analyst's Conclusion: Key Questions for the Case

This case appears to center on two primary questions for the court:

• A core issue will be one of visual comparison: Under the "ordinary observer" test, is the overall ornamental appearance of the defendants' belt buckles substantially the same as the specific design claimed in the '920 Patent, such that a typical purchaser would be deceived?
• A key procedural question will be one of proper joinder: Has the plaintiff provided sufficient evidence to support its theory that the various online storefronts are part of the "same transaction, occurrence, or series of transactions" by selling the same accused product, thereby justifying their joinder in a single action under 35 U.S.C. § 299?