Early Years
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.
In the 1920s, Friedman began his education in real estate and optometry. He would use both of these careers at different points in his life to supplement his income while improving his invention concepts. Although he was working as a realtor in San Francisco, California, the 1930s proved to be his most prolific patenting period, with six of his nine U.S. patents being issued then. One of these patents would prove to be his most successful invention - the flexible drinking straw.
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