Per §271(f)(1), “[w]hoever without authority supplies or causes to be supplied in or from the United States all or a substantial portion of the components of a patented invention, where such components are uncombined in whole or in part, in such manner as to actively induce the combination of such components outside of the United States in a manner that would infringe the patent if such combination occurred within the United States, shall be liable as an infringer.”

In reversing the Court of Appeals for the Federal Circuit, the Court reasoned that the text, context, structure and history of §271(f)(1) require a quantitative approach over a case-specific approach in determining the level of activity which gives rise to infringement liability under §271(f)(1).  Under the Court’s quantitative approach, a single component of a multicomponent patented invention cannot constitute a “substantial portion” triggering §271(f)(1) liability, regardless of the contribution or importance of that single component to the overall multicomponent patented invention.