“When the Patent Office initiates an inter partes review, must it resolve all of the claims in the case, or may it choose to limit its review to only some of them?”
“The statute, we find, supplies a clear answer: the Patent Office must ‘issue a final written decision with respect to the patentability of any patent claim challenged by the petitioner.’ 35 U.S.C. § 318(a) (emphasis added). In this context, as in so many others, ‘any’ means ‘every.’ The agency cannot curate the claims at issue but must decide them all.”