District Court, C.D. California December 21, 2007, Nos. 05-06419 MRP (AJWx), 05-06420 MRP (AJWx), 05-07492 MRP (AJWx), 05-08126 MRP (AJWx), 05-08254 MRP (AJWx), 06-00472 MRP (AJWx), 06-00537 MRP (AJWx) (Allied Orthopedic Appliances, Inc. v. Tyco Healthcare Group L.P.)

ORDER: 1) DENYING PLAINTIFFS’ MOTION FOR CLASS CERTIFICATION; AND 2) DENYING DEFENDANTS’ MOTION TO EXCLUDE THE TESTIMONY OF JOHN C. BEYER, PH.D

MARIANA R. PFAELZER, District Judge.

I.

INTRODUCTION

In this putative antitrust class action, Plaintiffs1 are direct purchasers of Defendants’2 pulse oximetry sensors and cables, also called consumables.