On 9 March 2020, the United States Court of Appeals for the Ninth Circuit in San Francisco, California, ruled in favor of Led Zeppelin, in that "Stairway to Heaven" does not infringe on the copyright of "Taurus". The full Ninth Circuit used their decision to overturn the controversial "inverse ratio rule" which it had relied over the past several decades in past copyright rulings, stating "Because the inverse ratio rule, which is not part of the copyright statute, defies logic, and creates uncertainty for the courts and the parties, we take this opportunity to abrogate the rule in the Ninth Circuit and overrule our prior cases to the contrary." This verdict immediately applied to pending cases within the Ninth: a long battle over Katy Perry's "Dark Horse" in which a jury had found against her for was overturned a week after the Ninth's verdict in "Stairway to Heaven", in part of the Ninth's new finding and that in the case of "Dark Horse", the similarity argument weighed heavily on the inverse ratio rule. On 5 October, the Supreme Court of the United States denied to grant "certiorari" to Andes and the trust, leaving the Ninth's circuit ruling in place in favour of Led Zeppelin. The court's decision precludes further appeals, thus ending the copyright dispute.