ALEXANDRIA, Va., Sept. 10 -- United States Patent no. 12,410,670, issued on Sept. 9.

"Knock-off plug, method, and system" was invented by James Scott Trahan (Magnolia, Texas) and Tuan Nguyen (Pearland, Texas).

According to the abstract* released by the U.S. Patent & Trademark Office: "A knock-off plug for a mill, including a body having a fluid pathway therein and configured for connection to a fluid conduit, a tortuous pathway fluidically associated with the fluid pathway, the plug configured to jettison the tortuous pathway upon knock off. A mill, including a knock off plug having a tortuous pathway therein. A method for beginning a casing exit, including running a mill, a knock-off plug, a diverter and an anchor as an assembly to depth...