blog posts Meet the most recent alumnus inducted into the National Inventors Hall of Fame Nov 20, 2015 3:00 pm by Dave EvensenCampus Life Share on Facebook Tweet Email Images William Sparks's invention of butyl rubber was critical to keeping the U.S. and its allies supplied with tires, rafts, boots, and other products during World War II when Japanese warships cut off shipments of natural rubber. Share on Facebook Tweet Email
