OpenAI Denied EU Trademark: Why Descriptive Brand Names Can’t Be Protected
In brief: On 15 July 2026, the General Court of the European Union ruled that OpenAI cannot register the sign “OPENAI” as an EU trademark for software and IT services — the term is purely descriptive and lacks distinctive character (Case T‑555/25). The case is a textbook example of how a perfect product name can turn into a trademark problem.
What the EU Court Decided
The General Court in Luxembourg dismissed OpenAI’s action in its entirety, upholding an earlier decision by the EU Intellectual Property Office (EUIPO). In the judges’ view, for goods and services in the software and IT sector, the term “OPENAI” merely describes the company’s activity and possesses no distinctive character.
The reasoning is immediately intuitive: “Open” signals to the relevant public that a service is freely accessible, and combined with “AI” (artificial intelligence), the public understands the term to mean that the products are based on openly accessible artificial intelligence.
Legal Basis: Article 7 EUTMR
The core of the reasoning lies in Article 7 of the EU Trademark Regulation (EUTMR): if a sign lacks distinctive character or directly describes the goods, it cannot be registered. That is precisely the case with “OPENAI,” since the word combination amounts to a purely factual statement.
The key arguments raised by OpenAI and the Court’s responses:
- “Open” is ambiguous: Rejected — the word combination is not an unusual linguistic construction in English.
- “OpenAI” is an invented word with no dictionary entry: The judges did not accept this argument either.
- The mark is registered in the UK and Singapore: Foreign offices do not bind EU law; the EU trademark system is autonomous, with its own rules and objectives.
The Procedural Background in Detail
OpenAI has been seeking trademark protection in the EU for several years and filed the word mark with the EUIPO in Alicante across four Nice classes:
The EUIPO therefore allowed only the telecommunications services in Class 38 and rejected the rest — a line the General Court’s Eighth Chamber has now confirmed.
Not an Isolated Case: The GPT Parallel in the US
The decision fits a familiar pattern. Back in 2024, the US Patent and Trademark Office (USPTO) refused registration of the mark “GPT” for Classes 9 and 42, holding the term (short for “Generative Pretrained Transformer”) to be purely descriptive. An acronym is considered descriptive when it is generally understood as equivalent to the descriptive words it stands for.
The underlying principle is the same on both sides of the Atlantic: every competitor must remain free to advertise its goods and services using descriptive terms — the so-called need to keep terms available.
What Happens Next for OpenAI
The judgment is not yet final. OpenAI can appeal the General Court’s decision to the Court of Justice of the European Union (CJEU). A company spokesperson stressed that the decision is merely one step in an ongoing process and that OpenAI will continue to pursue registration.
One back door remains: even a descriptive sign can, in theory, be saved by proving acquired distinctiveness through use — that is, evidence that virtually everyone across the EU associates the sign with the company.
Practical Takeaways for Trademark Filings
The case offers concrete lessons for the branding strategy of companies, especially in the technology sector:
- Vet descriptive names early: A name that explains too well what a product does often makes a poor trademark.
- Plan for class-by-class assessment: Protectability can differ per Nice class, as the Class 38 registration shows.
- Boost distinctiveness: Graphic or linguistic elements can render a word combination distinctive; purely descriptive combinations are not enough.
- Foreign registrations are no free pass: Registrations in third countries do not bind the EUIPO.
- Document acquired distinctiveness: Those relying on acquired distinctiveness should systematically collect evidence of use.
