Protecting Diagnostic Innovation – Two Actor Infringement Liability

”where all steps of a claimed method are performed by or attributed to a single entity…Where more than one actor is involved in practicing the steps, a court must determine whether the acts of one are attributable to the other such that a single entity is responsible for the infringement. We will hold an entity is responsible for others’ performance or method steps in two sets of circumstances: (1) where that entity directs or controls others’ performance, and (2) where the actors form a joint enterprise.” Slip Op. at 4.