Default Judgment Granted in Male Chastity Device Design Patent Case

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📋 Case Summary

Case NameYuxi Wang v. The Partnerships and Unincorporated Associations Identified on Schedule A
Case Number1:23-cv-06420 (N.D. Ill.)
CourtU.S. District Court for the Northern District of Illinois
DurationAug 2023 – Mar 2024 203 days
OutcomePlaintiff Win — Default Judgment
Patents at Issue
Accused ProductsMale chastity devices sold through online marketplace storefronts

Case Overview

The Parties

⚖️ Plaintiff

Individual patent holder asserting ownership of two U.S. design patents covering a male chastity device. Represented by Robert Michael Dewitty of Dewitty and Associates, Chtd.

🛡️ Defendants

Collective term for anonymous or pseudonymous online marketplace sellers, including burningdeal, factoryshopping, IGEON, PUMA-AMT, young256, and ChenRuiTechnology (Shen Zhen Chi Chen Rui Ke Ji You Xian Gong Si).

Patents at Issue

This case involved two U.S. design patents covering ornamental designs for a male chastity device. Design patents are registered with the U.S. Patent and Trademark Office (USPTO) and protect ornamental appearance rather than functional technology.

  • US D969,303 — Ornamental appearance of a male chastity device
  • US D921,182 — Related ornamental design in the same product category
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The Verdict & Legal Analysis

Outcome

The court granted **default judgment** in favor of plaintiff Yuxi Wang on March 19, 2024. The specific damages amount awarded was not disclosed in the available case record, as plaintiff’s counsel was directed to submit a proposed default judgment order. The civil case was formally terminated upon entry of that order, concluding just 203 days after filing.

Key Legal Issues

Default judgment under Federal Rule of Civil Procedure 55(b) is granted when a properly served defendant fails to plead or otherwise defend against a complaint. In this case, not a single named defendant entered an appearance or filed a response. This outcome bypasses traditional infringement analysis, meaning the court did not conduct claim construction, apply the ordinary observer test, or evaluate prior art. The plaintiff’s well-pleaded allegations of design patent infringement were accepted as true by operation of law.

This is a critical procedural distinction: default judgment does not constitute a merits ruling on patent validity or infringement, but it carries full legal enforceability, including potential injunctive relief and monetary damages as proposed by the prevailing party.

Strategic Takeaways

This case exemplifies a well-established and growing litigation strategy in design patent enforcement: the **Schedule A complaint**. By bundling numerous anonymous e-commerce defendants into a single action, patent holders achieve economies of scale in litigation costs while maximizing enforcement reach. The Northern District of Illinois, presided over by Chief Judge **Thomas M. Durkin**, has seen hundreds of such cases, and the default judgment outcome in Wang v. Schedule A Defendants reinforces that non-responsive defendants face near-certain adverse judgment.

For the design patent bar, the case reaffirms that **design patents on consumer products remain powerful enforcement tools**, particularly against overseas manufacturers operating through marketplace accounts. The two asserted patents — USD969,303 and USD921,182 — cover distinct ornamental designs, suggesting a deliberate prosecution strategy of building a design patent family around a core product to broaden enforcement coverage.

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Freedom to Operate (FTO) Analysis

This case highlights critical IP risks in consumer product design. Choose your next step:

📋 Understand This Case’s Impact

Learn about the specific risks and implications from this litigation.

  • View all related patents in this technology space
  • See which companies are most active in design patents
  • Understand enforcement trends against e-commerce sellers
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High Risk Area

Male chastity devices with similar ornamental designs

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2 Patents in This Case

In male chastity device design space

Default Judgment

Due to non-response from defendants

✅ Key Takeaways

For Patent Attorneys & Litigators

Schedule A design patent litigation in the Northern District of Illinois remains a high-efficiency enforcement vehicle with strong default judgment outcomes.

Search related case law →

Building a design patent family (multiple patents on related ornamental designs) maximizes claim coverage and enforcement leverage.

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FTO Analysis for Designs E-commerce Infringement Importance of Non-Response
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PatSnap IP Intelligence Team

Patent Research & Competitive Intelligence · PatSnap

This analysis was produced by the PatSnap IP Intelligence Team — a group of patent analysts, IP strategists, and data scientists who work daily with PatSnap’s global patent database of over 2 billion structured data points across patents, litigation records, scientific literature, and regulatory filings.

The team specialises in tracking landmark litigation outcomes, translating complex court rulings into actionable IP strategy, and identifying the competitive intelligence implications for R&D and legal teams. All case analysis is grounded in primary sources: official court records, USPTO filings, and Federal Circuit opinions.

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References

  1. United States District Court for the Northern District of Illinois — Case 1:23-cv-06420
  2. U.S. Patent and Trademark Office — Design Patent Resources
  3. PACER Case Locator
  4. Northern District of Illinois Court Website
  5. Cornell Legal Information Institute — Federal Rule of Civil Procedure 55(b)

This article is for informational purposes only and does not constitute legal advice. All case information is drawn from publicly available court records. For platform capabilities, visit PatSnap.

⚖️ Disclaimer: This article is for informational purposes only and does not constitute legal advice. The analysis presented reflects publicly available case information and general legal principles. For specific advice regarding patent litigation, FTO analysis, or IP strategy, please consult a qualified patent attorney.