ALEXANDRIA, Va., July 16 -- United States Patent no. 12,669,797, issued on June 30, was assigned to FANUC Corp. (Yamanashi, Japan).

"Control device, machine tool system, and control method" was invented by Riho Kubota (Yamanashi-ken, Japan), Kaoru Hiraga (Yamanashi-ken, Japan) and Hiroyuki Abe (Yamanashi-ken, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A control device, includes: a modification instruction receiving unit for receiving modification instructions for a control parameter and for machining program; a history storage unit for causing a storage unit to store a modification history for the control parameter and the machining program; an Undo/Redo processing unit for performing an Undo/Redo ...