1 Exhibit 10.29B AMENDMENT NO. 3 TO COLLABORATIVE RESEARCH AGREEMENT This Amendment No. 3 to the Collaborative Research Agreement (the "Amendment No. 3"), effective as of February 12, 1999 (the "Amendment No. 3 Effective Date"), is made by and between...Collaborative Research Agreement • February 25th, 1999 • Abgenix Inc • Biological products, (no disgnostic substances)
