Projection Lamp Design Patents at Center of Illinois IP Dispute
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📋 Case Summary
| Case Name | Xiaoan Xu v. Schedule A Defendants |
| Case Number | 1:23-cv-15894 |
| Court | Northern District of Illinois |
| Duration | Nov 2023 – Sep 2024 9 months 21 days |
| Outcome | Case Resolved (Details Undisclosed) |
| Patents at Issue | |
| Accused Products | Projection Lamps (e-commerce) |
Case Overview
The Parties
⚖️ Plaintiff
Individual inventor holding a portfolio of U.S. design patents in consumer lighting and projection lamps. Represented by Renner Otto.
🛡️ Defendants
E-commerce sellers including Evermore Enterprise (Zhejiang) Ltd., Fussion Lighting, Ganzhou Badu Technology Co., Ltd., and Shenzhen Ziguang Lighting Tech Co., Ltd.
Patents at Issue
This case centered on three design patents protecting the ornamental appearance of projection lamp products. Design patents are registered with the U.S. Patent and Trademark Office (USPTO) and protect how a product looks, not how it works.
- • US D965,848S — Design for a projection lamp
- • US D969,391S — Design for a projection lamp
- • US D977,177S — Design for a projection lamp
Designing a similar product?
Check if your projection lamp design might infringe these or related patents before launch.
The Verdict & Legal Analysis
Outcome
The specific basis of termination and final verdict in Case No. 1:23-cv-15894 were not disclosed in the available case record. This is not uncommon in Schedule A litigation, where many matters conclude through consent judgments, sealed settlements, default judgments, or voluntary dismissals following early injunctive relief. The case’s relatively brief duration — under ten months — strongly suggests resolution prior to any merits trial.
Key Legal Issues
Design patent infringement under 35 U.S.C. § 171 is evaluated through the “ordinary observer test” established in Egyptian Goddess, Inc. v. Swisa, Inc. An accused product infringes if an ordinary observer, familiar with the prior art, would be deceived into believing the accused design is the same as the patented design. This case exemplifies the use of “Schedule A” litigation tactics in the Northern District of Illinois, which involves consolidating claims against multiple e-commerce sellers, often leading to early Temporary Restraining Orders (TROs) and asset freezes to encourage swift resolution.
Freedom to Operate (FTO) Analysis
This case highlights critical IP risks in projection lamp design. Choose your next step:
📋 Understand This Case’s Impact
Learn about the specific risks and implications from this litigation.
- Analyze enforcement trends in projection lamp IP
- Identify key design elements often targeted in litigation
- Explore strategies for effective design differentiation
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High Risk Area
Projection lamp aesthetics for e-commerce
3 Related Patents
Specifically involved in this case
Proactive FTO Critical
For new product launches
✅ Key Takeaways
Schedule A design patent enforcement in N.D. Illinois remains a viable and efficient assertion strategy for consumer product design portfolios.
Search related case law →Layered design patent prosecution (multiple continuation applications) amplifies enforcement leverage.
Explore prosecution strategies →Absence of defense counsel in multi-defendant cases often signals likely default or early settlement.
Analyze litigation patterns →Frequently Asked Questions
Three U.S. design patents: USD965,848S, USD969,391S, and USD977,177S, covering ornamental designs for projection lamp products.
The U.S. District Court for the Northern District of Illinois, Case No. 1:23-cv-15894, before Chief Judge Sara L. Ellis.
It reinforces that design patent enforcement against e-commerce sellers remains active. Manufacturers and sellers of projection lamps should conduct design patent clearance searches before entering U.S. markets.
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References
- PACER — Case No. 1:23-cv-15894, Northern District of Illinois
- USPTO Public Search — Design Patent Database
- Cornell Legal Information Institute — 35 U.S.C. § 171
- United States Court of Appeals for the Federal Circuit — Egyptian Goddess, Inc. v. Swisa, Inc., 543 F.3d 665 (Fed. Cir. 2008)
- PatSnap — IP Intelligence Solutions for Law Firms
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.