In 1940, American chemist Glenn Seaborg and his colleagues discovered plutonium. He soon joined the Manhattan Project and was instrumental in the development of the atomic bomb, which he unsuccessfully pressed President Truman not to use on civilian targets. In 1951, he and Edwin McMillan shared the Nobel Prize in Chemistry for their work on transuranium elements. During his lifetime, Seaborg held dozens of patents—among them the only patents ever issued for what? Discuss