
SCOTUS Says “Fresenius/Simmons Preclusion Principle” Stays Alive, PTAB Litigation Blog
Visit the PTAB Litigation Blog.
The Supreme Court recently denied Chrimar Systems, Inc. (Chrimar)’s petition for certiorari seeking to overturn the Federal Circuit’s “Fresenius/Simmons preclusion principle,” under which Chrimar’s district court victory against ALE USA Inc. (ALE) was overturned based on the Federal Circuit’s subsequent affirmance of a PTAB decision finding the asserted patents invalid.