Case Overview

How an E-Commerce Design Patent Case Ended in a $260,000 Settlement and Permanent Amazon Ban

When patent holder Jierong Wang filed suit in the Southern District of New York in March 2024, the case against e-commerce sellers Xindakangmaoyi and 9IUOOM INC moved with striking speed. Within 150 days, the court entered a consent judgment finding willful patent infringement, ordering a $260,000 damages payment, and permanently enjoining the defendant from selling infringing connector products on Amazon. Case No. 1:24-cv-01812 offers a concise but instructive playbook for design patent enforcement against cross-border e-commerce sellers — and a clear warning to R&D teams and product importers operating in U.S. marketplace channels.

For patent attorneys, IP professionals, and R&D leaders tracking design patent litigation trends, this case illustrates how U.S. patent holders are leveraging federal courts and Amazon’s payment infrastructure to swiftly neutralize infringing sellers, particularly those operating under multiple seller aliases.

The Parties

The Patent at Issue

The asserted patent, U.S. Design Patent No. USD0931,947S (application number US29/751065), covers the ornamental design of a connector piece. Design patents protect the *appearance* of a product rather than its functional features, making visual similarity between the patented design and the accused product the central analytical question in infringement disputes. These patents are registered with the U.S. Patent and Trademark Office (USPTO).

• • US D931,947S — Ornamental design for a connector piece

The Accused Products

The accused products — marketed under the brand 9IUOOM Connector Piece — were sold across multiple Amazon ASINs, including B097ZNWY5Y, B0CFTZKQV8, B0CFV4FJH2, B0B4WC4T5N, B0987D9VGR, B097ZNT3V3, and B08GFV6WIF. The breadth of ASINs across a single seller account signals a sustained commercial operation, not an isolated listing — a factor relevant to both damages calculation and the court’s willfulness finding.

The Verdict & Legal Analysis

Litigation Timeline & Procedural History

The case was filed in the U.S. District Court for the Southern District of New York (SDNY) and assigned to Chief Judge Vernon S. Broderick. SDNY is a strategically significant venue for e-commerce patent enforcement: its familiarity with international commerce, established procedures for expedited injunctive relief, and authority to compel compliance from U.S.-based platforms like Amazon make it a preferred forum for plaintiffs asserting rights against foreign-operated marketplace sellers.

The case resolved at the first instance (district court) level without progressing to trial, consistent with the growing trend of pre-trial consent judgments in e-commerce patent enforcement actions. The 150-day resolution timeline reflects efficient case management and the parties’ mutual interest in a negotiated resolution — a pattern increasingly common when marketplace account freezes create immediate commercial pressure on defendants.

Outcome

The court entered a consent judgment on August 5, 2024, resolving all claims between Plaintiff Wang and Defendant 9IUOOM INC through a negotiated settlement. The judgment includes three principal remedies:

1. Monetary damages of $260,000 (or the maximum amount withheld by Amazon, whichever applies), to be transferred directly from 9IUOOM INC’s Amazon seller account to the Plaintiff within seven calendar days of the order.
2. Permanent injunction prohibiting 9IUOOM INC, its officers, agents, and any persons acting in concert from making, using, selling, offering for sale, or importing any product infringing the ‘947 Patent.
3. Amazon ASIN removal of all seven identified product listings, with Amazon.com, Inc. ordered to execute both the fund transfer and listing removals.

The case was dismissed with leave to reinstate within 180 days, automatically converting to a dismissal with prejudice absent a motion to reinstate — a standard enforcement mechanism ensuring compliance without immediate finality.

Willful Infringement Finding

The court’s finding of willful patent infringement under 35 U.S.C. § 271 is notable. Willfulness, while resolved by settlement rather than trial, carries strategic weight: it signals that the plaintiff presented sufficient factual basis for enhanced damages eligibility and strengthens the deterrent value of the judgment. For future enforcement actions by Wang or similarly situated patent holders, this documented finding of willfulness supports the narrative of deliberate commercial exploitation of protected designs.

Jurisdiction and the E-Commerce Nexus

The court’s personal jurisdiction analysis deserves particular attention. Rather than requiring a physical U.S. presence, the court found jurisdiction based on the defendant’s purposeful direction of commercial activity toward U.S. consumers — specifically, operating Amazon storefronts targeting U.S. buyers, accepting U.S. dollar payments, and shipping to New York addresses. This mirrors the emerging jurisdictional framework applied to cross-border e-commerce defendants and confirms that foreign sellers with active U.S. marketplace accounts face real litigation exposure in U.S. federal courts.