In the case Wrench LLC vs Taco Bell Corp, did Michigan court, California court, and federal court all have jurisdiction to hear the case?

Question

I believe the case is a diversity of citizenship scenario giving all of these courts concurrent jurisdiction. However, I feel that it could also be federal jurisdiction if this is considered a copyright issue case? Thanks for your help.

Answer 1

1.     The case was originally filed as a diversity action in federal court (U.S. District Court for the Western District of Michigan). This suggests diversity jurisdiction applied, likely because the plaintiffs (Wrench LLC, based in Michigan) and defendant (Taco Bell Corp., based in California) were from different states1

1.     The case involved claims under both state law (breach of implied contract, various torts) and federal law (Copyright Act preemption issues)4

1.     The federal district court in Michigan had jurisdiction to hear the state law claims through diversity jurisdiction, as well as the federal copyright preemption issues1

1.     The case was appealed to the U.S. Court of Appeals for the Sixth Circuit, indicating it remained in the federal court system

2.     There's no indication in the search results that California state courts or Michigan state courts directly heard this case. However, the federal courts applied and interpreted state law (both Michigan and California law are mentioned) in addition to federal copyright law

3.     So in summary:The federal courts (district court and appeals court) clearly had jurisdiction.

4.     State courts theoretically could have had concurrent jurisdiction over the state law claims, but the case was filed in and remained in federal court.

5.     The copyright preemption issue gave additional grounds for federal jurisdiction beyond just diversity.