by Dennis Crouch
Oral argument at the Federal Circuit typically lasts 30 minutes. But the judges on the panel do not divide that time equally among themselves. I used a sample of 1000+ Federal Circuit oral arguments and found some big differences among the judges. 
Chief Judge Kimberly Moore leads the court with a median speaking time of 4.51 minutes per argument. Judge Taranto follows closely at 4.31. At the other end of the spectrum, Judge Lourie speaks for a median of just 0.86 minutes, and the newest member, Judge Cunningham for 0.92 minutes. That is a fivefold difference between the most and least talkative members of the court.