Which types of cases appear in a federal court?

[bergh39]

in which of the following: child custody, medical malpractice.product liability, copyright violation

[darik]

Yes, the above answer is correct. But, not only do the parties have to be from separate states, but there also has to be over $75,000 worth in controversy between them (this is called diversity jurisdiction). So a products liability case can easily end up in federal court if the damages are high enough and they live in separate states. In fact, most of what federal courts hear are diversity cases. But child custody will always be in state court.

[armin]

Child custody never does. Medical malpractice and product liability rarely do. They can only be filed in federal court in the plaintiffs and defendants are from different states. Copyright violation is generally filed in federal court.