2016 was a big year for patent law. Five patent cases were argued at the U.S. Supreme Court. Gilead Sciences Inc. got hit with a $200 million infringement verdict in March, and though it was quickly overturned, the figure turned out to be small potatoes compared to the $2.5 billion verdict Gilead sustained just this month.

But instead of focusing on the biggest cases, we hereby present five of the quirkiest patent cases that crossed the U.S. Court of Appeals for the Federal Circuit’s docket this year.