ALEXANDRIA, Va., June 16 -- United States Patent no. 12,304,232, issued on May 20, was assigned to ZuMedia Inc. (New York).
"Multi-cartridge pen devices and writing instruments" was invented by Phyllis Jager (New York), Barry Terach (New York) and Mark Cuban (New York).
According to the abstract* released by the U.S. Patent & Trademark Office: "A writing instrument such as a pen or stylus, that is capable of writing contemporaneously in different physical characteristics, such as color and visual appearance-that is, without the need to switch out different cartridges to write in different characteristics; as well as to an ink device for such a writing instrument, such as a multi-cartridge tip having multiple nibs, where the multiple nibs ...