ALEXANDRIA, Va., Oct. 28 -- United States Patent no. 12,448,675, issued on Oct. 21, was assigned to ELOS MEDTECH PINOL A/S (Gorlose, Denmark).

"Low temperature titanium hardening" was invented by Thomas Lundin Christiansen (Frederikssund, Denmark), Morten Stendahl Jellesen (Soborg, Denmark), Marcel A. J. Somers (Billund, Denmark) and Andreas Frederik Kielsholm Korkel (Graested, Denmark).

According to the abstract* released by the U.S. Patent & Trademark Office: "The present invention relates to a method of oxygen hardening a Group IV metal, the method comprising the steps of: providing a workpiece of a Group IV metal in its final shape; oxidising the Group IV metal over an oxidising duration of at least 10 minutes in an oxidising atmosphe...