Can You Trademark an AI Name? What the OpenAI Ruling Means

In short: you can trademark an AI name, but only if it does not simply describe what the product does. That is exactly where OpenAI failed in the European Union. This is not a footnote for lawyers. It affects almost every AI startup that is choosing its name by the same pattern right now.

What the EU court decided

On 15 July 2026, the General Court of the European Union (Case T-555/25) refused the word mark "OpenAI" for part of the claimed goods and services, specifically in Classes 9, 42 and 45. The reason: the name is descriptive and lacks distinctiveness (Article 7(1)(c) of the EU Trade Mark Regulation).

The reasoning is strikingly simple. The English-speaking public reads "open" as freely accessible and "AI" as artificial intelligence. Put together, "OpenAI" simply describes products based on openly accessible artificial intelligence. A sign that only describes the product cannot be a trademark.

Two points matter for context. This case concerned the word mark, the plain text. And the judgment is not the final word, since an appeal to the Court of Justice remains possible, as does a separate claim of recognition acquired through use.

Why "descriptive" is the sticking point

Behind the decision sits an old principle of trademark law, which the court sums up like this: signs that describe characteristics of goods or services must remain available to all and must not be reserved to a single company.

In practice: the more precisely a name says what the product is or does, the harder it is to protect. "SmartCloud", "AutoTranslate" or indeed "OpenAI" feel convenient when founding a company because they are instantly clear. In trademark law that very clarity is the problem.

The AI naming boom hits exactly the risky classes

The timing is delicate. For the first half of 2026 the EUIPO reports a record 104,263 EU trademark applications, up 8.4 percent year on year. The growth is driven by the EU single market, with Germany among the strongest contributors (up 15.2 percent).

A visible share of this wave is AI. And AI names naturally cluster in the software and IT Classes 9 and 42, precisely where the descriptiveness test bites hardest. So many founders are choosing, right now, the names that are legally the hardest to hold.

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How to find a name you can protect

A few practical guardrails before you file:

• Move away from pure description. Coined names (invented words) or merely suggestive names are the most robust. If the name explains what you do, treat that as a warning sign.
• Set your classes first. Decide which goods and services your mark should cover. An AI product usually touches Class 9 and Class 42. An overview: Nice classes explained.
• Search the register before filing, not after. Check whether your name is not already taken by an identical or similar mark. How the official search works: the guide to EUIPO trademark search. Whether the name is protectable beyond that is best confirmed by a professional.
• Take similarity seriously. An exact hit is rare, the dangerous ones are the similar marks. The fastest start is a trademark check against the EU register.

Takeaway

The OpenAI ruling is a free lesson for the whole AI scene: the catchiest name is often the one you can protect the least. Thinking about that before you file saves an expensive rebrand or an opposition later. This article puts public data and a public court decision into context and is not legal advice. For a binding assessment of a specific name, a professional can help when in doubt.