PATENT AND TRADEMARK ASSIGNMENT AND SECURITY AGREEMENT THIS PATENT AND TRADEMARK ASSIGNMENT AND SECURITY AGREEMENT (this "Agreement"), dated as of November 1, 1999, is made between NORTH AMERICAN VACCINE, INC., a Canadian corporation ("Assignor") and...Patent and Trademark Assignment and Security Agreement • March 9th, 2000 • North American Vaccine Inc • Biological products, (no disgnostic substances) • New York
