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UKIPO Invalidates GPT and ChatGPT Marks
21 September 2026
The UK Intellectual Property Office recently invalidated UK trademark rights in GPT and ChatGPT.
The decision came while rejecting OpenAI's bid to block ChainGPT LLC from registering its name.
The ruling raises questions about the protectability of the GPT term in the UK.
OpenAI had sought to prevent the competing registration on grounds including likelihood of confusion.
The outcome follows ongoing global scrutiny of AI-related branding and trademark distinctiveness.
Sources: https://www.mlex.com/mlex/intellectual-property https://trademarklawyermagazine.com/trademark-news/
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