ALEXANDRIA, Va., Oct. 21 -- United States Patent no. 12,440,951, issued on Oct. 14, was assigned to NITROSET LLC (Houston).

"Apparatus for installing explosively driven fasteners" was invented by Joe Lin (Missouri City, Texas) and Brian Liu (Houston).

According to the abstract* released by the U.S. Patent & Trademark Office: "A spring tool for actuating explosive fasteners for driving nails into a substrate is disclosed. For the tool to operate at its maximum potential the firing pin guide should be pushed securely against the rear of the fastener and the tip of the fastener should be pushed securely against the substrate. The action of the operator pushing the tool forward to actuate the tool moves the trigger body forward while compress...