Perplexity AI Wins Cancellation of Similar-Named Firm Trademark

Perplexity AI Inc. convinced a federal judge to cancel a Texas-based software company’s “perplexity” trademark, ending a year-long lawsuit over the moniker.

There’s no dispute that Perplexity Solved Solutions Inc. fraudulently obtained its trademark registration because the company failed to defend itself after a split with its counsel, according to an order filed Jan. 23 in California federal court granting Perplexity AI default judgment.

PSSI’s initiation of the lawsuit and previous participation in proceedings suggests there may have been some disputes between the parties, Judge Jacqueline Scott Corley said. But Perplexity AI showed “valid grounds for cancellation,” she said, and …