ALEXANDRIA, Va., Feb. 17 -- United States Patent no. 12,554,681, issued on Feb. 17, was assigned to DIGIWIN Co. LTD. (Shanghai) and DATA SYSTEMS Co. LTD. (New Taipei, Taiwan).

"System and method of undoing data based on data flow management" was invented by Cong Zhou (Shanghai) and Guoxin Sun (Shanghai).

According to the abstract* released by the U.S. Patent & Trademark Office: "A system of undoing data and a method of undoing data based on a data flow management are provided. The system of undoing data based on the data flow management includes a display module, a project task management module, and a task engine. The display module receives an undone command, so that the project task management module performs a verification operation. ...