ALEXANDRIA, Va., Oct. 27 -- United States Patent no. 12,773,325, issued on Oct. 27, was assigned to Joint Development Inc. (Salt Lake City).

"Hard liner removal instrument" was invented by Thomas Collier (Park City, Utah).

According to the abstract* released by the U.S. Patent & Trademark Office: "A hard liner removal instrument includes a barrel containing a striking mass in slidable relation therewith and a spring positioned between a first end of the barrel and the striking mass. The spring selectively moves between a normal resting position and a loaded position where the striking mass is positioned a greater distance from a second end of the barrel opposite the first end than when the spring is in the normal resting position. As such...