This case addresses[1] the application of issue preclusion in scenarios where two closely related cases allege patent infringement against different versions of the same technology. Specifically, this case discusses whether a party’s waiver of a doctrine-of-equivalents theory in an initial lawsuit extends to a subsequent case involving a newer iteration of the technology previously litigated.Continue Reading Precluded, Not Repeated: WARF & Apple Continue to Shape our Understanding of Issue Preclusion in Patent Law