The Trustees of Purdue University (d/b/a Purdue University) have added a second case to their litigation campaign targeting SiC MOSFETs (silicon carbide metal-oxide semiconductor field-effect transistors), begun this past summer with a Western District of Texas suit against STMicro. The new defendant is Wolfspeed (f/k/a Cree) (1:21-cv-00840), sued in the Middle District of North Carolina over the same two patents, developed by Purdue University faculty and students. The plaintiff pleads awareness of one or more of the asserted patents based on the defendant’s own prosecution activities before the USPTO, as well as through an April 2021 “notice letter”.