Age: 51
Place of birth: Champagne, Ill.
Residence: Plymouth
Family: wife, Sally; sons, Jeff, Derek and Michael; daughter, Sarah
Education: Massachusetts Institute of Technology, Ph.D., biochemical engineering; Duke University, bachelor's degree, biomedical engineering
Career: Piper Jaffray & Co., managing director and chief science adviser; Khosla Ventures, chief science officer; Cargill Inc., director of biotechnology; University of Wisconsin-Madison, professor of chemical engineering
Heroes: Leonardo Da Vinci, Louis Pasteur
