Who invented nylon?

Wallace Carrothers, an absolutely brilliant organic chemist who worked for DuPont, and battled severe depression all his life. Carrothers wanted to give something to mankind that would be truly useful, but was not convinced any of his work had been any good at all. He ultimately committed suicide. Three weeks after taking his own life, he was awarded the patent for nylon - one of the most useful of all synthetic plastic-type compounds.