Decisions Applying the § 315(b) Time Bar when Instituting IPR Proceedings Nonappealable

Addressing the scope of review of the PTAB’s application of the one-year time bar of 35 U.S.C. § 315(b) in deciding whether to institute an IPR proceeding, the US Supreme Court held that the PTAB’s application of the time bar is nonappealable.


Addressing the scope of review of the Patent and Trademark Office (PTO) Patent Trial and Appeal Board’s (PTAB) application of the one-year time bar of 35 U.S.C. §315(b) in deciding whether to institute an inter partes review (IPR) proceeding, the US Supreme Court held that application of the time bar by the PTAB is nonappealable. Thryv, Inc. v. Click-to-Call Techs., LP, Case No. 18-916 (Apr. 20, 2019) (Ginsburg, Justice) (Gorsuch, Justice, joined in part by Sotomayor, Justice, dissenting). The Court explained an appeal based on the PTAB’s application of the time bar for filing an IPR petition is prohibited under 35 U.S.C. § 314(d), which states that the PTAB’s decision on institution “shall be final and nonappealable.”

Click-to-Call owns a patent related to technology for anonymous telephone calls. In 2001, the patent was asserted against a predecessor in interest to Thryv, but the case ended in a voluntary dismissal. In 2013, Thryv filed an IPR petition (under its former name of Ingenio) challenging certain claims of the patent. Click-to-Call argued that because of the 2001 lawsuit, Thryv’s privy had been served with a complaint more than one year earlier and the petition was time barred under § 315(b). The PTAB disagreed and instituted an IPR proceeding. After the PTAB’s final decision invalidated the challenged claims, Click-to-Call appealed, claiming that the PTAB exceeded its authority to issue the final decision because if it had properly applied the time bar of § 315(b), the IPR proceeding should never have been instituted.

The Federal Circuit dismissed the appeal for lack of jurisdiction on the basis that § 314(d) precludes judicial review of the PTAB’s application of § 315(b). The Supreme Court, soon after its intervening decision in Cuozzo Speed Technologies, LLC v. Lee (IP Update, Vol. 19, No. 7), granted certiorari, vacated the judgment and remanded. The Federal Circuit then dismissed the appeal on the same basis as it had previously. However, in light of its en banc decision in Wi-Fi One, LLC v. Broadcom Corp. (IP Update, Vol. 19, No. 10) holding that “the time-bar determinations under § 315(b) are appealable,” the Federal Circuit granted panel rehearing and held that the PTO erred by instituting the IPR because the petition was time barred due to the service of the complaint in the 2001 lawsuit. The Supreme Court granted certiorari to resolve whether the PTAB’s application of § 315(b) is reviewable (IP Update, Vol. 21, No. 5).

The Court largely reiterated its reasoning in Cuozzo and held that because the § 315(b) time bar is “closely tied to the application and interpretation of statutes related to” the institution determination, a party may not appeal the PTAB’s application of the one-year time bar of § 315(b). Click-to-Call argued that § 314(d)’s prohibition on appealing institution decisions should be limited to the PTAB’s determination “under this section,” i.e., only as to the requirements listed in § 314. The Court rejected that argument, explaining that Cuozzo, a case that addressed the nonappealability of PTAB’s decisions dealing with the requirement of “particularity” in connection with petitions under § 312(a)(3), foreclosed that argument. The Court noted that its understanding of the statute aligned with the AIA’s goal of weeding out “bad patents,” because it focuses appeals on the substantive issues of patentability. Allowing appeals because of a defect in the institution decision would allow a patent to survive, even though the PTAB already determined it to be unpatentable.

Justice Ginsburg, noting the presumption favoring judicial review, allowed that the Supreme Court in Cuozzo did “reserve judgment” on whether § 314(d) would bar all appeals, such as those “that implicate constitutional questions.” However, the Court explained that since the time bar question is closely related to the institution decision, the time bar issue did not meet that criteria. The Court observed that § 315(b) “governs institution and nothing more,” and therefore, any appeal is merely “a contention that the agency should have refused ‘to institute an inter partes review.'”

The Court also distinguished its decision in SAS Institute, which held that the PTAB’s application of § 318(a) was appealable. SAS Institute addressed the manner in which the agency’s review proceeds once instituted, not whether the PTAB should have instituted a proceeding (IP Update, Vol. 21, No. 5).

In a lengthy narrative dissent, Justice Gorsuch would have limited § 314(d)’s prohibition on appeal to applications of the subsections “under this section” of § 314, as explicitly stated in the text of the statute, especially given the strong presumption in favor of judicial review. The dissent claimed that under the majority’s interpretation, “this section” becomes superfluous, even though that same phrase provides substantive importance in numerous other sections of the AIA. The dissent also suggests that Oil States, which held that IPR proceedings were not an unconstitutional taking of property, was wrongly decided.

© 2023 McDermott Will & Emery
National Law Review, Volumess X, Number 113