ALEXANDRIA, Va., March 17 -- United States Patent no. 12,579,906, issued on March 17.

"Braille writing device" was invented by Hilary Anna Johnson (Portland, Ore.), Vadim Kuklov (Somerville, Mass.) and Alexander H. Slocum (Bow, N.H.).

According to the abstract* released by the U.S. Patent & Trademark Office: "Braille writing devices and systems, and corresponding methods of writing braille characters on a tape medium are described herein. The devices and systems emboss tactile dots on different types of tape medium to enable braille character writing and advance the tape medium to create accurate and repeatable spacing of the braille characters. The devices and systems may be comprised of simply molded plastic parts that snap together usi...