Palo Alto Networks, Inc. v. Finjan, Inc. (Fed. Cir. 2020)

Note - I originally misread this decision as applying the Phillips standard for claim construction. On review, I realize that I misread the decision. The court explains:

For petitions for inter partes review filed on or after November 13, 2018, the Board applies the Phillips district court claim construction standard. 37 C.F.R. § 42.100(b) (2018); Phillips v. AWH Corp., 415 F.3d 1303 (Fed. Cir. 2005) (en banc); Immunex Corp. v. Sanofi-Aventis U.S. LLC, 977 F.3d 1212, 1216 & n.2 (Fed. Cir. 2020). For petitions for inter partes review filed before November 13, 2018, like Palo Alto’s, we apply the broadest reasonable interpretation claim construction standard.

So, my original opinion--that the change in claim construction made the difference--is obviously wrong.

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This appeal stems from an IPR proceedings filed by Palo Alto (PANW) against Finjan's US. Patent No. 8,141,154.  Back in 2017, the Board originally sided with Finjan and confirmed patentability of the claims (not proven unpatentable). In a 2018 appeal, however, the Federal Circuit vacated that decision under SAS.  The IPR had only been partially-instituted and the Supreme Court in SAS held that partial-institution is improper.   On remand, the Board expanded its institution to all challenged claims and then again sided with the patentee -- finding none of the challenged claims were proven unpatentable.  On appeal here, the Federal Circuit has affirmed.