Christian Louboutin's signature red-lacquered sole is one of the most recognizable design elements in luxury fashion. When Yves Saint Laurent released a monochrome red shoe — including a red sole — Louboutin sued for trademark and design right infringement in the U.S.

Legal Issue

Could a single colour, applied to a specific part of a product, be protected under trademark and design law?

Court Decision

The Second Circuit Court of Appeals ruled in 2012 that Louboutin's red sole, when contrasted with the rest of the shoe, was distinctive enough to merit protection. YSL's monochrome red shoe was held not to infringe because the sole was not contrasted — the entire shoe was red.

Significance & Impact

The case established that colour can function as a protectable design element if it acquires distinctiveness through use. It also underscored the overlap between design patents and trademarks in fashion, where ornamental features can become brand identifiers in their own right — a precedent widely relied upon since.

Puma's collaboration with Rihanna produced the iconic Fenty sneaker line. Shortly after its release, Forever 21 launched sneakers with strikingly similar designs, prompting Puma to file suit in California for design patent infringement.

Legal Issue

Had Forever 21 infringed the ornamental design patents covering the Fenty sneakers, diluting the line's originality and commercial value?

Significance & Impact

While the case did not result in a landmark ruling, it demonstrated how litigation can be deployed strategically to defend brand exclusivity in a market dominated by rapid replication. It also highlighted the particular vulnerability of fashion collaborations — where design value is tied not just to the product but to the cultural moment it represents.

Burberry's iconic plaid — known as the "Burberry check" — is one of the most recognised patterns in global fashion. Burberry has pursued aggressive enforcement of this design across multiple jurisdictions, combining trademark and design protection to prevent unauthorised replication.

Court Actions

In Burberry Ltd. v. Euro Moda, Inc. (2009), Burberry successfully obtained injunctive relief preventing the sale of infringing goods. Similar actions have followed in markets worldwide.

Significance & Impact

Burberry's enforcement strategy illustrates how ornamental patterns can serve as powerful brand assets — and how layering trademark and design protection creates a more robust shield than either tool alone. It has encouraged other houses to take similarly proactive positions on their signature design elements.

Although a technology dispute at its core, the Apple v. Samsung litigation had significant ripple effects across the design patent landscape — including fashion. Apple alleged that Samsung had copied the design of the iPhone, including its rounded corners, bezel, and icon layout, all protected under design patents.

Court Proceedings

The case spanned five years and multiple appeals. A 2012 jury initially awarded Apple over $1 billion in damages. The U.S. Supreme Court ultimately ruled in 2016 that damages should be calculated based on the portion of the product attributable to the design patent — not the entire product.

Impact on Fashion

This ruling had direct relevance to fashion IP by reinforcing that design elements carry significant commercial value and by clarifying how damages in design infringement cases should be apportioned — a framework now applied in fashion disputes involving partial design replication.

Gucci filed lawsuits against Guess in multiple countries, alleging that Guess had copied its iconic "G" logo, diamond pattern, and stripe designs — all central ornamental features of the Gucci brand identity.

Court Decision

In 2012, a U.S. court awarded Gucci $4.7 million in damages, finding that Guess had copied distinctive design elements. However, Gucci's claim for billions in damages was rejected.

Significance & Impact

The case highlighted the difficulty of proving design infringement when ornamental features have some industry-wide prevalence. It also demonstrated the challenges of quantifying damages in fashion disputes — a tension that continues to shape how luxury brands frame their enforcement strategies.

Christian Dior accused Zara of producing a handbag that directly replicated one of its patented designs — a dispute that became emblematic of the broader tension between luxury and fast fashion.

Court Decision

French courts sided with Dior, ruling that Zara's handbag infringed on Dior's design rights and ordering the product's withdrawal from the market.

Significance & Impact

The ruling sent a strong message to fast-fashion retailers about the legal and reputational risks of copying patented designs. It reinforced design patents as a meaningful tool for luxury brands seeking to defend their creative investment against rapid-cycle replication at lower price points.

Hermès sued digital artist Mason Rothschild over his "MetaBirkins" NFTs — digital artworks depicting the iconic Birkin bag in fur-covered virtual form. The case was the first major test of whether design protection extends into digital and metaverse environments.

Court Decision

In 2023, a U.S. jury sided with Hermès, awarding damages and ruling that the NFTs infringed on Hermès' trademark and design rights.

Significance & Impact

This was a landmark moment for fashion IP. The ruling established that design protection does not stop at the physical product — it extends into virtual environments. For luxury brands navigating the intersection of fashion, digital assets, and the metaverse, the MetaBirkins decision is now the foundational precedent.