who received a patent for the manufacture of chewing gum
William F. Semple William Finley Semple (1832-1923) was a dentist from Mount Vernon, Ohio, commonly referred to as the first person anywhere to patent a chewing gum. On December 28, 1869, Semple filed Patent No. 98,304 with the U.S. Commissioner of Patents. However, Amos Tyler of Toledo, Ohio, patented his chewing gum on July 27 of the same year.[1] John B. Curtis successfully sold his "State of Maine Pure Spruce Gum" in 1848, though he did not patent it.