Apple, Google, Cisco, Intel Corp (INTC.O) and Edwards Lifesciences Corp (EW.N) sued the PTO in the California federal court in 2020 over the rule.
They argued it undermined the role inter partes review plays in "protecting a strong patent system" and violated federal law.
Companies including Tesla, Honda, Comcast and Dell filed briefs at the Federal Circuit in support of the plaintiffs.
The California court dismissed the case in 2021, citing U.S. Supreme Court rulings that Patent Trial and Appeal Board decisions on whether to review inter partes review petitions cannot be appealed.
The case is Apple Inc v. Vidal, U.S. Court of Appeals for the Federal Circuit, No.