Venue Dismissed: Shenzhen Huajing v. The Grease Box LLC Patent Case

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📋 Case Summary

Case NameShenzhen Huajing International Trade Co., Ltd. v. The Grease Box LLC
Case Number2:25-cv-01300
CourtU.S. District Court for the Western District of Washington
DurationJul 2025 – Feb 2026 7 months
OutcomeDefendant Win — Dismissed Without Prejudice
Patents at Issue
Accused ProductsSamsung Galaxy S Series SmartphonesFour Amazon-listed grease bucket SKUs (B0DJFNG1DP, B0DNSP3TFJ, B0DSVQ4SND, B0DJBB85FK)

Introduction

A patent infringement complaint filed by a Chinese trading company against a small American LLC was dismissed without prejudice in under eight months — not on the merits of the infringement claim, but because the plaintiff chose the wrong courtroom. In Shenzhen Huajing International Trade Co., Ltd. v. The Grease Box LLC (Case No. 2:25-cv-01300), the U.S. District Court for the Western District of Washington granted the defendant’s motion to dismiss after finding the plaintiff failed to establish that a substantial part of the events giving rise to the claim occurred in Washington.

The case centered on U.S. Patent No. US11812895B2, covering what appears to be a grease containment product, with four specific Amazon-listed grease bucket SKUs named as accused products. Chief Judge Jamal N. Whitehead declined to transfer the case, instead dismissing the complaint outright.

For patent attorneys, IP professionals, and R&D teams, this outcome is a sharp reminder: even a meritorious infringement claim can collapse before it begins if venue is poorly planned. This case is a textbook study in the strategic and procedural stakes of venue selection in patent infringement litigation.

Case Overview

The Parties

⚖️ Plaintiff

A China-based international trading company operating in the consumer products space, holding U.S. utility patents relevant to grease management accessories.

🛡️ Defendant

A U.S.-based limited liability company selling grease containment products through Amazon, identified by four specific ASINs.

The Patent at Issue

The patent at issue is **U.S. Patent No. US11812895B2** (application number US16/984646). While the input data does not disclose the full claim language, the patent falls within the grease containment or cooking accessory product category based on the accused products. The asserted claims were not adjudicated on their merits due to the procedural dismissal.

The complaint accused four Amazon-listed grease bucket products sold by The Grease Box LLC. The commercial relevance is significant: Amazon ASIN-linked products represent active retail inventory, meaning the plaintiff was targeting commercially live products in a competitive e-commerce market.

Legal Representation

Plaintiff was represented by attorneys Hongchang Deng and Jianwei Wang of Alight Law P.C. and LawMay PC.

Defendant was represented by Armon Shahdadi, Christopher R. Kinkade, and Frank Stuart Harrison of Pierson Ferdinand LLP, with offices engaged across Seattle, Georgia, and New Jersey — reflecting a coordinated, multi-jurisdictional defense posture.

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Litigation Timeline & Procedural History

Complaint FiledJuly 10, 2025
Case ClosedFebruary 23, 2026
Total Duration228 days (approx. 7.5 months)

The complaint was filed on July 10, 2025 in the U.S. District Court for the Western District of Washington, a court known for handling technology and IP matters in the Pacific Northwest corridor. The case was assigned to Chief Judge Jamal N. Whitehead.

The matter resolved in 228 days — roughly 7.5 months — without reaching claim construction, discovery, or any substantive infringement analysis. The defendant’s motion to dismiss for improper venue was dispositive. No evidence suggests the plaintiff pursued an interlocutory appeal or sought emergency transfer relief.

The speed of dismissal signals an early, aggressive defense motion that the plaintiff was unable to rebut with sufficient jurisdictional facts connecting the alleged infringement events to Washington state. The court’s refusal to transfer — opting instead for outright dismissal — added procedural finality to an already short-lived case.

The Verdict & Legal Analysis

Outcome

Chief Judge Whitehead granted the defendant’s motion to dismiss and dismissed the complaint without prejudice, meaning Shenzhen Huajing retains the right to refile in a proper venue. No damages were awarded. No injunctive relief was issued. The case closed February 23, 2026.

Venue Deficiency: The Core Legal Issue

The court’s ruling turned entirely on 28 U.S.C. § 1391, the general federal venue statute, and potentially 28 U.S.C. § 1400(b), the patent-specific venue provision established and clarified by the Supreme Court in TC Heartland LLC v. Kraft Foods Group Brands LLC (2017).

The court found that the plaintiff failed to demonstrate that a substantial part of the events or omissions giving rise to the claim occurred in Washington. In patent infringement cases, this requires showing that infringing acts — such as sales, offers for sale, manufacture, or use — took place within the district. Where accused products are sold exclusively through Amazon’s national marketplace, pinning venue to a specific district becomes legally complex.

The court notably declined to transfer the case in lieu of dismissal, finding it was not “in the interests of justice” to do so. This is a meaningful distinction: courts have discretion under 28 U.S.C. § 1406(a) to either dismiss or transfer when venue is improper. The court’s choice of dismissal, rather than transfer, suggests the plaintiff’s venue theory was insufficiently developed or that a proper alternative venue was not clearly established on the record.

Strategic Turning Points

Two strategic failures stand out. First, the plaintiff filed in Washington without establishing a clear nexus between The Grease Box LLC’s alleged infringing conduct and that district. For Amazon-based sellers, sales may occur nationwide, but courts increasingly demand proof of defendant’s specific contacts with the chosen forum. Second, the plaintiff’s legal team did not present a compelling transfer argument as a fallback, leaving the court without a clear alternative venue to which it could redirect the case.

Legal Significance

This case reinforces the post-TC Heartland landscape where venue selection in patent cases is a threshold strategic decision, not an afterthought. Plaintiffs — particularly foreign companies asserting U.S. patents — must conduct rigorous pre-filing venue analysis, including identifying where the defendant resides, is incorporated, or has committed acts of infringement with a regular place of business.

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Freedom to Operate (FTO) Analysis

This case highlights critical IP and venue risks for Amazon sellers. Choose your next step:

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  • Analyze *TC Heartland* implications for your case
  • Identify key procedural steps for venue challenges
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High Risk Area

Venue challenges for e-commerce sellers

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1 Related Patent

US11812895B2 (grease containment)

Early Dismissal

Aggressive venue defense pays off

✅ Key Takeaways

For Patent Attorneys & Litigators

Venue selection under TC Heartland remains a high-stakes threshold decision in patent cases.

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Courts may dismiss — not transfer — improperly venued cases when a clear alternative venue is not established on the record.

Explore procedural precedents →

Early, targeted venue challenges remain one of the most cost-effective defense strategies available, protecting smaller defendants like LLCs from disproportionate litigation costs.

Identify optimal defense strategies →

Amazon ASIN-targeted infringement complaints require particularized venue analysis beyond national sales data, demanding proof of defendant’s specific contacts with the chosen forum.

Analyze e-commerce patent risks →
For IP Professionals

Foreign patent holders asserting U.S. patents must conduct rigorous defendant-specific venue mapping before filing.

Evaluate cross-border enforcement risks →

A without-prejudice dismissal preserves refiling rights but resets the litigation clock and significantly increases costs, emphasizing the importance of pre-filing diligence.

Optimize litigation spend →
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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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⚖️ 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.