Ortho-McNeil Pharmaceutical, Inc. v. Mylan Laboratories, Inc.

ORDER DENYING PLAINTIFFS’ MOTION TO AMEND

KEELEY, District Judge.

This matter comes before the Court on Plaintiffs’ Motion for Leave to File Amended Complaint. The motion is fully briefed and ripe for review. For the following reasons, Plaintiffs’ motion is DENIED.

BACKGROUND.

This is a pharmaceutical drug patent infringement action. Plaintiffs Daiichi Pharmaceutical Company, Ltd. (Daiichi), Ortho-McNeil Pharmaceutical, Inc. (Or- tho), and Johnson & Johnson Research & Development, LLC (J & J) are brand-name pharmaceutical manufacturers. Defendants Mylan Laboratories, Inc. and Mylan…