Virginia-based startup Operation Bluebird is challenging X Corp's ownership of the Twitter trademark, claiming the brand has been legally abandoned. The startup, led by a former Twitter marketing executive, argues that X Corp's removal of the Twitter name from its platform over the past three years constitutes abandonment under U.S. trademark law. Operation Bluebird has launched a competing platform, Twitter.new, and aims to reclaim the brand. X Corp has not commented on the matter, but legal experts note that while the startup's case may be strong, X Corp could argue residual brand recognition. The outcome will hinge on X Corp's response to the trademark cancellation request, expected by early February.