Once a month we provide an update on activity in cases pending before panels of the Federal Circuit where the cases involve at least one amicus brief. Today we highlight recent activity in six such cases. We introduced four of these cases last month in a previous blog post. Of the two new cases, one concerns an attempt to vacate a judgment of non-infringement of a patent in favor of a settlement agreement, and the other questions whether the Patent Trial and Appeal Board may consider eligibility challenges to amended patent claims filed in inter partes review proceedings.