On 22 July 2023, Elon Musk posted that X would “bid adieu to the twitter brand and, gradually, all the birds.” The next day he said the company was taking blow torches to the Twitter logo on the building. Three years on, both posts have cost him a trademark. Chief Judge Colm Connolly ruled on 3 September that X keeps the Twitter name. It has probably given up the word “tweet” and the bird logo. His opinion, filed in the District of Delaware, runs to 31 pages. It turns, repeatedly, on what Musk said in public. The case is X Corp. against Operation Bluebird, a startup set up to claim the marks Musk discarded. X sued it in December 2025. Days earlier, on 2 December, Bluebird had filed its own applications for “TWITTER” and “TWEET” with the US Patent and Trademark Office. What X kept, and what it cost X won on eight marks, the group Connolly calls Twitter-formative. It won them on a single clause sitting in the Apple App Store. The X app listing opens: “Welcome to X (formerly known as Twitter), your trusted digital town square.” Naser Baseer, a legal director at X, testified that the company
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