Confidential Treatment Requested PATENT LICENSING MASTER AGREEMENT This PATENT LICENSING MASTER AGREEMENT (the "Agreement") is entered into as of September 25, 1998 (the "Effective Date") by and between Protein Design Labs, Inc., a corporation...Patent Licensing Master Agreement • November 16th, 1998 • Protein Design Labs Inc/De • Biological products, (no disgnostic substances) • California
