Previously to joining E3x Bio, Paul spent 22 years in drug discovery at Genentech. While his primary focus was identification and validation of novel targets, Paul has a broad range of experience in Technology Development, Immunology and Cancer Immunology. Paul led the Molecular Biology Department, as well as the Genentech Genomics program which successfully identified > 400 new secreted proteins and cell surface receptors. Paul was also a member of the management team that oversaw all aspects of Genentech Research, and has been an inventor on over 500 patents.