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Elon Musk’s X has filed a lawsuit against a US-based startup after it attempted to trademark the name “Twitter,” claiming the brand was abandoned when the social media platform rebranded. The legal move aims to protect X’s continued ownership of the Twitter name, logo, and related trademarks. X has also updated its Terms of Service to show that it owns both the brands.
The dispute began when Operation Bluebird, a startup based in Virginia, filed a petition to the US Patent and Trademark Office on December 2 to claim the “Twitter” trademark. The company argued that X gave up the brand after changing the platform’s name from Twitter to X in 2023. To support its case, Operation Bluebird pointed to a July 23, 2023, post from Musk in which he said the platform would soon “bid adieu to the twitter brand.”
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Well, X has now pushed back strongly. In its countersuit, the company says it still owns the Twitter and Tweet trademarks, as well as the iconic blue bird logo. According to TechCrunch, X has even updated its Terms of Service to clearly state that it still owns both brands.
The revised terms, which take effect on January 15, 2026, now include a direct reference to Twitter. The terms state: “Nothing in the Terms gives you a right to use the X name or Twitter name or any of the X or Twitter trademarks, logos, domain names, other distinctive brand features, and other proprietary rights, and you may not do so without our express written consent.” Earlier versions only mentioned X and did not reference Twitter at all.
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X also made other smaller updates to its Terms of Service and Privacy Policy, including references to European Union regulations, AI-generated content, and age verification technology.