After finishing his undergraduate degree in mathematics at the University of
Wisconsin, the quiet and studious Yuen decided to pursue a doctorate in applied
mathematics at the prestigious California Institute of Technology (CalTech) in Pasadena,
California. Upon completing his doctorate, Yuen remained in southern California,
working for fourteen years as a research scientist for TRW, a large conglomerate.
Because he had always been fascinated by the U.S. legal system, Yuen spent several
years attending law school on a part-time basis while employed by TRW. He eventually
earned a law degree from Loyola Law School near downtown Los Angeles.