In a decisive outcome for patent holders targeting online marketplace infringers, the U.S. District Court for the Northern District of Illinois entered a default judgment on the merits in favor of Hong Kong Xingtai International Trade Co., Ltd. against a sprawling group of e-commerce defendants identified on Schedule A. Filed November 9, 2023, and closed July 9, 2024 — a span of just 243 days — the case centered on alleged infringement of U.S. Patent No. 7,819,545 B2, covering outdoor solar decorative lighting technology sold by dozens of online sellers including All Fortune, Jnaurb US, Joomer Direct, DAYBETTER US, SHOPLED, and over 40 named entities predominantly based in China.

This case exemplifies the increasingly common ‘Schedule A’ litigation strategy employed by Chinese IP holders and their U.S. counsel to efficiently enforce design and utility patents against large cohorts of counterfeit or infringing online sellers on platforms like Amazon. For patent attorneys, in-house IP teams, and product developers in the consumer lighting and solar technology sectors, the case underscores the procedural power of default judgment as an enforcement mechanism and the growing sophistication of Chinese companies in asserting U.S. patent rights against their own countrymen operating in Western e-commerce markets.

Case Overview

The Parties

The Patent at Issue

U.S. Patent No. 7,819,545 B2 (Application No. 12/218,205) covers outdoor solar-powered decorative lighting systems, likely including the structural and functional arrangement of solar collection components integrated with ornamental light strings or fixtures designed for exterior use. The patent’s claims protect the specific configuration that enables energy-efficient solar charging alongside aesthetic decorative illumination, commonly seen in string lights, garden lights, and holiday lighting sold through online retail channels. Real-world applications include the solar-charged decorative string lights widely available on e-commerce platforms for residential garden, patio, and outdoor event use.

• • US7819545B2

Legal Representation

Plaintiff Counsel: Bishop Diehl & Lee, Ltd. (lead: Benjamin Adam Campbell)

Litigation Timeline & Procedural History

The case was filed in the U.S. District Court for the Northern District of Illinois — one of the most frequently chosen venues for Schedule A patent enforcement actions due to its efficient case management, familiarity with multi-defendant e-commerce cases, and availability of expedited temporary restraining orders (TROs) that can freeze infringing seller accounts and assets. Chief Judge Rebecca R. Pallmeyer presided over the matter at the first-instance district court level, meaning no appellate review was triggered and the judgment carries direct enforceability against the named defendants.

The case resolved in just 243 days — a relatively swift resolution consistent with the Schedule A litigation model, where defendants frequently fail to appear or retain counsel, triggering default proceedings. The verdict cause confirms an infringement action resolved through a motion for entry of default and default judgment, docket entry [170], which was granted. A notable procedural detail is that attorney Allen Justin Poplin was permitted to withdraw as counsel for defendant Lanwind nunc pro tunc to April 25, 2024, signaling that at least one defendant briefly retained counsel before abandoning the defense — a pattern common in Schedule A cases where defendants calculate that litigation costs outweigh potential liability.

The Verdict & Legal Analysis

Outcome

The court granted Plaintiff Hong Kong Xingtai International Trade Co., Ltd.’s Motion for Entry of Default and Default Judgment [170] against the Schedule A defendants, resulting in a judgment on the merits in Plaintiff’s favor and termination of the civil case. No specific damages quantum or injunctive relief terms are recited in the available verdict data, though default judgments in Schedule A cases routinely include permanent injunctions and statutory or actual damages awards against the defaulting sellers. The court did not adjudicate the substantive validity of U.S. Patent No. 7,819,545 B2, as no defendants mounted a merits-based defense.

Verdict Cause Analysis

The default judgment was reached through the following procedural and legal grounds:

• Defendants failed to appear, answer, or otherwise defend against Plaintiff’s infringement claims under U.S. Patent No. 7,819,545 B2, satisfying the conditions for entry of default under Fed. R. Civ. P. 55(a).
• Plaintiff’s motion for default judgment under Fed. R. Civ. P. 55(b) was granted by Chief Judge Pallmeyer, constituting a judgment on the merits without trial, as defendants forfeited their right to contest liability.
• The withdrawal of defense counsel for defendant Lanwind nunc pro tunc to April 25, 2024 reflects the common defense abandonment pattern in Schedule A cases, where cross-border defendants weigh litigation costs against potential exposure.
• The Northern District of Illinois, as a preferred Schedule A enforcement venue, applied established procedural protocols for multi-defendant e-commerce infringement cases, enabling streamlined entry of default across the entire defendant class.

Legal Significance

1. 1. The case reaffirms the viability of the Schedule A litigation model for Chinese-origin patent holders asserting U.S. patent rights against e-commerce infringers, demonstrating that jurisdictional and standing barriers are not insurmountable for foreign plaintiffs holding U.S. patents.
2. 2. Because no merits-based invalidity or non-infringement defense was raised, U.S. Patent No. 7,819,545 B2 emerges from this litigation with its claims legally unchallenged, maintaining full enforceability against future infringers in the outdoor solar lighting space.
3. 3. The nunc pro tunc counsel withdrawal ruling illustrates how courts manage attorney-defendant relationships in multi-party default scenarios, providing a procedural precedent for counsel seeking to withdraw from Schedule A matters when clients become unresponsive.

Strategic Takeaways

For Patent Attorneys:

• When filing Schedule A actions in the Northern District of Illinois, ensure TRO and asset freeze motions are coordinated with the infringement complaint filing to maximize early leverage over non-appearing defendants and prevent asset dissipation.
• Document service of process and notice to all named defendants meticulously before moving for default; courts may scrutinize sufficiency of service across large defendant schedules, particularly for Chinese-based entities.
• The nunc pro tunc withdrawal granted here signals judicial flexibility on counsel exit timing — attorneys representing individual defendants in Schedule A cases should formalize withdrawal promptly upon client non-response to avoid fee disputes and ethical exposure.
• Since no invalidity defense was litigated, US7819545B2 remains an unscathed enforcement asset; consider building a broader licensing or enforcement program around this patent while its claims remain judicially untested.

For IP Professionals:

• In-house teams at consumer lighting companies operating on Amazon or similar platforms should audit product listings against US7819545B2 claims immediately, as the patent’s survival through default judgment makes it an active litigation risk with a demonstrated plaintiff enforcement appetite.
• Monitor the Northern District of Illinois Schedule A docket for related Xingtai filings; a plaintiff securing default judgments in one case frequently re-files against new cohorts of infringing sellers, and early identification can enable proactive settlement or design-around strategies.

For R&D Teams:

• Engineering teams developing solar decorative string lights or outdoor solar-powered fixtures should conduct a claim-by-claim FTO analysis of US7819545B2 before commercialization, as the patent’s enforceability is confirmed and the plaintiff has demonstrated willingness to litigate.
• Design-around strategies should focus on the specific solar collection and decorative light integration architecture claimed in US7819545B2; alternative solar panel mounting configurations, charging circuit topologies, or light string attachment mechanisms may provide freedom to operate.