The case of Arthrex v. Smith & Nephew, Inc., has raised a host of questions about the appointment of judges to the Patent Trial and Appeal Board (PTAB), and witnesses at a congressional hearing said a Supreme Court review might be two years in coming. Any such resolution might not clear out the thicket of underlying legal questions, however, and thus the witnesses urged Congress to take action quickly even as the Federal Circuit considers an en banc hearing of the matter.