
Update: The Supreme Court issued a decision on April 20, 2020 holding that the patent statute (35 U.S.C. § 314(d)) bars judicial review of a PTAB decision of whether an inter partes review petition is time-barred pursuant to 35 USC 315(b). As stated by the Court, the PTAB’s “application of §315(b)’s time limit, we hold, is closely related to its decision whether to institute inter partes review and is therefore rendered nonappealable by§314(d).”
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An updated discussion of this issue is available here: Federal Circuit to Take AIA Time Bar Issue En Banc
Original Post: In a non-precedential decision late last year, the Federal Circuit dismissed a patent owner’s appeal of a Patent Trial and Appeal Board decision that refused to apply a statutory time-bar to deny institution of an inter partes review proceeding. Click-to-Call Technologies, LP v. Oracle Corp., 622 Fed. Appx. 907 (Fed. Cir. 2015) (per curiam). The court relied on the “No Appeal” provision in 35 USC § 314(d), which states that the “determination by the Director whether to institute an inter partes review under this section shall be final and nonappealable.”
Continue Reading Supreme Court Vacates Federal Circuit Decision that Refused to Review PTAB’s Application of the Time Bar to AIA Trials

A judgment in an interference disposes of all issues that were, or by motion could have properly been, raised and decided. A losing party who could have properly moved for relief on an issue, but did not so move, may not take action in the Patent Office after the judgment that is inconsistent with that party’s failure to move. 37 C.F.R. § 41.127. This is known as “interference estoppel,” and was recently applied by the PTAB in partially denying an IPR petition. See
The Federal Circuit recently vacated or reversed-in-part two PTAB final written decisions on the basis that the PTAB did not adequately describe its reasons for concluding the claimed invention is obvious. In both instances, the court criticized the Board’s “broad, conclusory statements” regarding one of ordinary skill’s motivation to adjust prior art teachings. These decisions highlight an attractive grounds for appealing a PTAB’s final written decision.
Institution was denied in two IPR proceedings on the grounds that the petitions were filed more than one year after petitioner was served with a complaint alleging patent infringement. The documents were electronically filed but proof of payment of filing fees were one minute and nine minutes late, respectively. Additionally service had not been completed before the midnight deadline.