Snow Ingredients, Incorporated v. SnoWizard

JENNIFER WALKER ELROD, Circuit Judge:

As the seasons turn from spring to summer in New Orleans, locals know to expect familiar changes. The days get longer. The temperature rises. And in the humid warmth of summer, long lines grow outside the most popular sno-ball shops. The parties in this case have come to expect another predictable event with the changing seasons — a visit from a process server setting off a new round of litigation. What began as a flurry of cease-and-desist letters between the companies has turned into a blizzard of patent, trademark, and antitrust litigation. Each party…