By some estimates, as much as $118 billion worth of foreign
infringing products entered the United States in a single
year.1 While the current news cycle focuses
on tariffs, the International Trade Commission (ITC)
offers patent-owners a powerful weapon to combat
infringement: a Section 337 action to block the importation
of infringing products at U.S. ports of entry. While
this powerful remedy can make the ITC an ideal forum
for certain cases, the ITC differs from standard district
court litigation in important ways. This article provides a
general overview of some of the unique aspects of an
ITC investigation.
I. Filing a Complaint and the Burden of Proof
Like a district court action, a party must file a
complaint seeking a remedy under Section 337.2 The
ITC complaint must allege that products are being
imported into the United States that "infringe a valid
and enforceable United States patent" and that there
is "domestic industry"—i.e., "an
industry in the