B. Braun Medical, Inc. v. Abbott Laboratories

B. Braun Medical, Inc. (Braun) appeals from the district courts judgment, following a jury trial, that Braun misused its patent, was equitably estopped from asserting its patent, and that, in any event, the accused devices did not infringe the asserted claims of Brauns patent. Abbott Laboratories (Abbott) cross-appeals, seeking attorney fees and damages for Brauns patent misuse. We conclude that the district court erred with respect to its treatment of equitable estoppel and patent misuse. Accordingly, we affirm-in-part, reverse-in-part, vacate-in-part, and remand for further proceedings.