A Delaware federal judge on Tuesday ordered a patent infringement case involving two Finnish companies transferred out of the Delaware district court, in an unusual ruling that diverged from one issued by the U.S. Federal Circuit Court of Appeals.

The ruling, from U.S. District Judge Gregory M. Sleet of the District of Delaware, exposed what he called the “rare situation” in which the courts find the existence of minimum contacts with Delaware but decline personal jurisdiction over a defendant as unreasonable under the due process clause.