25 March 2026

Too Late to Antedate: A Sandbagging Strategy St...

In Implicit v. Sonos, the Federal Circuit affirmed the PTAB’s refusal to let Implicit use post-decision certificates of correction to introduce a new antedating theory in inter partes review. Implicit owned two related patents that originally named two individuals as the sole inventors. After Sonos filed IPRs to challenge the patents, Implicit argued that those […]