Laltitude LLC v. Dreambuilder Toy: Permanent Injunction Secured in Magnetic Tile Design Patent Dispute

Case Overview

In a decisive resolution to a multi-year design patent dispute, the U.S. District Court for the Southern District of Ohio entered a permanent injunction against Dreambuilder Toy LLC, barring the company from manufacturing, selling, or offering for sale specific magnetic tile products alleged to infringe upon Laltitude LLC’s registered design patents. The case — Laltitude, LLC v. Dreambuilder Toy LLC, Case No. 2:22-cv-02911 — closed on September 8, 2025, after more than three years of litigation and culminated in a joint motion that combined injunctive relief with a with-prejudice dismissal of all remaining claims.

For IP professionals and patent litigators tracking design patent infringement trends in the toy and consumer products sector, this case offers instructive lessons on enforcement strategy, the scope of injunctive relief in Amazon marketplace disputes, and the growing use of stipulated permanent injunctions as settlement vehicles. The outcome underscores that design patents remain potent tools for protecting product aesthetics — even in highly competitive, commoditized markets like magnetic construction tiles.

The Parties

Patents at Issue

Two design patents formed the core of this litigation, protecting the ornamental appearance of magnetic tile products:

• • US D789,312S (Application No. US29/541656)
• • US D784,938S (Application No. US29/541658)

The visual similarity between accused and patented products is the central legal inquiry for design patents, covering how a product looks rather than how it works.

The Verdict & Legal Analysis

Outcome

The Southern District of Ohio granted the Joint Motion for Permanent Injunction, issuing a court order permanently enjoining Dreambuilder Toy LLC from manufacturing, using, selling, or offering for sale products tied to ASINs B075FJS3C9 and B083K45NC4, and “PicassoTiles compatible magnetic tiles” across a defined list of additional ASINs. The injunction also broadly prevents infringement of “any patents asserted in the action”.

Notably, the injunction expressly carved out five ASINs (B011FCA02O, B0878C9D4X, B07RHXSKK5, B01362R66E, and B0878F8K4X), indicating the parties reached a negotiated boundary distinguishing infringing from non-infringing Dreambuilder products. No monetary damages figure was disclosed in the available case record.

All claims were dismissed with prejudice, foreclosing any future litigation between the parties on these specific claims.

Key Legal Issues

This was an infringement action involving design patents, judged by the “ordinary observer” standard. Under this test, infringement is found when an ordinary observer, familiar with the prior art, would be deceived into believing the accused design is the same as the patented design.

The case reinforces several important principles for design patent litigation:

• ASIN-Level Enforcement: The use of specific Amazon ASINs as the operative product identifiers reflects the maturation of e-commerce IP enforcement, precisely targeting marketplace listings.
• Permanent Injunction as Settlement Currency: Laltitude secured a court-enforceable order with contempt-of-court consequences for any future violation, a significantly stronger enforcement tool than a private settlement agreement.
• Design Patent Durability: Both USD789,312S and USD784,938S survived multi-year litigation without validity challenges appearing to derail the plaintiff’s position, reinforcing their resilience in the consumer products space.