THE IP BRIEFINGNEW YORK
Marked.

Issue No. 050 · Story 01 · September 7, 2026

Trademark

Court Splits Rights in the Twitter Name, Tweet, and Bird Logo

A Delaware federal judge granted X Corp. a preliminary injunction barring Operation Bluebird from using the Twitter name, while declining to block its use of Tweet and the former bird logo.

  • §X still identifies its app as formerly known as Twitter in Apple's App Store, which the court viewed as evidence of continuing trademark use.
  • §Survey evidence supported X's argument that Twitter remains a famous and commercially strong brand.
  • §The court found that Operation Bluebird was likely to prove abandonment of the Tweet mark and bird logo.
  • §Operation Bluebird responded by renaming its service Tweet.app while the litigation continues.

THE TAKEAWAY

A famous brand can remain protected even after a rebrand, but unused pieces of the old identity may face a different abandonment analysis. The same issue also shows copyright owners continuing to test how training, outputs, and attribution fit existing law.

Filing: D. Del.

Same issue