Rooted in the principle of fairness, the doctrine of assignor estoppel generally prevents an inventor, who had previously assigned their patent rights to another for value, from later contesting the validity of the assigned...more
On June 21, 2021, in United States v. Arthrex, the Supreme Court finds that Administrative Patent Judges (“APJs”) on the Patent Trial and Appeal Board (“PTAB”) panels for inter partes review (“IPR”) proceedings to be acting...more