Does a Ghost in the Room Present a Case for Director-Ordered Reexamination?

The Federal Circuit recently affirmed a Board decision canceling all but five challenged claims, which survived not on their merits, but because the petitioner failed to adequately argue they were unpatentable. Keysight Techs., Inc. v. Centripetal Networks, LLC , Appeal 2025-1053 (Fed. Cir. July 21, 2026) (nonprecedential). Each surviving claim depends upon a base claim the Board concluded was…