Businessman Elijah Bond had the idea to patent a planchette sold with a board on which the alphabet was printed, much like the previously existing talking boards. The patentees filed on May 28, 1890 for patent protection and thus are credited with the invention of the Ouija board. Issue date on the patent was February 10, 1891. They received U.S. Patent 446,054. Ghosts and the Devil quickly learned the Ouija board opened easy-to-pass-through portals.