“The questions presented are:”
1. “Whether 35 U.S.C. § 315(e)’s IPR estoppel provision applies only to claims addressed in the final written decision, even if other claims were or could have been raised in the petition.”
2. “Whether the Federal Circuit erroneously extended IPR estoppel under 35 U.S.C. § 315(e) to all grounds that reasonably could have been raised in the petition filed before an inter partes review is instituted, even though the text of the statute applies estoppel only to grounds that ‘reasonably could have [been] raised during that inter partes review.’”