X-Patent
On July 31, 1790 inventor Samuel Hopkins of Pittsford, Vermont became the first person to be issued a patent in the United States. His patented invention was an improvement in the "making of Pot Ash by a new apparatus & process." The earliest patent law required that a working model of each invention be produced in miniature.
Joseph Friedman
By the age of fourteen, had conceptualized his first invention, the lighted pencil, which he deemed the "pencilite," and was attempting to market his idea. Over the course of his inventing career, he would experiment with ideas ranging from writing implements to engine improvements, and household products to sound and optic experiments. He was issued nine U.S. patents and held patents in Great Britain, Australia and Canada. His first patent was issued for improvements to the fountain pen on April 18, 1922. This was also the first invention that he successfully sold, to the Sheaffer Pen Company in the mid-1930s.