Two Supreme Court opinions top our annual list of the year’s most important cases involving expert witnesses. While one of the Supreme Court cases makes the list for what the court did, the other is included for what the court did not do.

Also on the list are two Federal Circuit cases that provide further guidance for attorneys and experts in patent litigation, two circuit cases that push the boundaries of Daubert, a mass-tort case right out of a John Grisham novel, and even a case from across the pond that is causing ripples here in the U.S.

As always, we welcome your feedback. Let us know what you think of our picks and of any cases you believe should be listed here.