Background
Pearl Musical Instrument Company — one of the world’s largest drum manufacturers — sued Hoshino Gakki Co., Ltd. (the Japanese company behind Ibanez guitars and Tama drums) in August 2023, alleging both patent infringement and trade dress infringement of its marching band drum carrier system. A drum carrier is a harness-and-frame assembly worn by marching band percussionists to support and secure their drums while performing.
Pearl holds U.S. Patent 7,671,261 covering its drum carrier design and asserted that Hoshino Gakki’s competing Tama product copied both the patented mechanical features and the distinctive visual appearance of the Pearl carrier — the latter forming the basis of Pearl’s trade dress claim. Pearl argued that its distinctive look had acquired secondary meaning among marching band programs and their equipment directors, and that Hoshino Gakki’s product created a likelihood of consumer confusion.
Hoshino Gakki moved to dismiss the trade dress claim, arguing that Pearl’s own patent was fatal to that claim: by patenting the design, Pearl had represented to the Patent Office that the features were functional, and functional features cannot receive trade dress protection.
The Court’s Holding
Judge Scott granted Hoshino Gakki’s motion and dismissed Pearl’s trade dress infringement claim — though without prejudice, giving Pearl until August 7, 2026 to amend its complaint.
The court applied the functionality doctrine: trade dress — the overall visual appearance of a product — cannot be protected if that appearance is primarily functional rather than merely aesthetic. Protection for functional product features belongs to the patent system, not trademark law. A hallmark indicator of functionality is the existence of a utility patent covering the same features, because patents are granted precisely for inventions with functional utility.
Here, Pearl’s allegations of nonfunctionality amounted to “several conclusory statements” without factual support. Worse, the existence of Pearl’s own patent on the drum carrier design provided strong evidence pointing the other way. The court found Pearl had not adequately pleaded that the design elements it sought to protect through trade dress were ornamental or aesthetic rather than essential to the product’s function — a prerequisite for trade dress protection. The patent infringement claims were not dismissed and remain pending.
Key Takeaways
- Owning a utility patent on a design feature is powerful evidence that the feature is functional — and functional features cannot be protected as trade dress. Companies seeking dual protection (patent + trade dress) face this tension at the pleading stage.
- Trade dress pleadings must include factual allegations of nonfunctionality, not just conclusions. Asserting that a design “serves no functional purpose” is insufficient when the plaintiff simultaneously holds a utility patent on the same features.
- Dismissal without prejudice preserves a second bite. Pearl may be able to salvage its trade dress claim by identifying specific design elements that fall outside the scope of the patent’s functional claims — ornamental flourishes or aesthetic choices that go beyond what the patent covers. This distinction can be drawn, but requires careful pleading.
- The tension between patent and trade dress law is real and under-litigated. While the Federal Circuit has addressed this issue at the appellate level, district courts continue to work through exactly how much a patent’s existence weighs against a trade dress plaintiff.
Why It Matters
Product manufacturers frequently pursue both patent and trade dress protection for the same product — patents for the functional innovation, trade dress for the visual look that consumers associate with the brand. This case is a useful illustration of the risk in that dual-protection strategy: the very patent that establishes your innovation can be turned against your trade dress claim by a defendant pointing to the patent as proof that the features are functional.
For marching band equipment, the stakes are concentrated in a relatively niche market where school programs, band directors, and drum line coordinators are the purchasing decision-makers and brand recognition is commercially significant. But the legal principle is widely applicable across any industry where manufacturers seek both utility and design protection — from consumer electronics to automotive accessories to medical devices.
Surfaced via Law360 IP.