On August 16, 2018, the U.S. Federal Circuit addressed when the inter partes review (IPR) time bar clock begins to tick. See Click-to-Call Tech. LP v. Ingenio, Inc., Slip Op. 2015-1242 (Fed. Cir. Aug. 16, 2018). The en banc Federal Circuit addressed whether the one year estoppel clock begins for a properly served complaint when the complaint is subsequently dismissed without prejudice. The panel found that the § 315(b) time bar applies. The filing of such a complaint, though later voluntarily dismissed, has previously formed the basis for declaratory judgment jurisdiction where the initial defendant later brings a validity challenge. See TransWeb, LLC v. 3M Innovative Props. Co., 812 F.3d 1295, 1300 (Fed. Cir. 2016).
In a big day for inter partes review (IPR) at the U.S. Supreme Court, the Court issued two opinions, Oil States Energy Services, LLC v. Greene’s Energy Group, LLC et al. and SAS Institute Inc. v. Iancu et al.
On October 4, 2017, the Federal Circuit held en banc that the proper interpretation of 35 U.S.C. 316(d) and (e) requires the Petitioner in an inter partes review (IPR) to prove all propositions of unpatentability, including for amended claims. Aqua Prods., Inc. v. Matal, No. 2015-1177 (Fed. Cir. Oct. 4, 2017). The en banc Court further determined that the PTAB must consider the entirety of the record when assessing the patentability of amended claims under 318(a), not merely the face of a motion to amend.
The Aqua case resulted in five opinions totaling 148 pages, each presenting views on judgment and underlying rationale, ultimately leading to a narrowly tailored holding. In the decision, the Federal Circuit made clear that the burden of persuasion of patentability does not rest with the Patent Owner; instead, it is left to the Petitioner to establish that any proposed amended claims are not patentable.