ALEXANDRIA, Va., June 12 -- United States Patent no. 12,296,205, issued on May 13, was assigned to Hilti AG (Schaan, Liechtenstein).
"Fire protection element for sealing passage openings in components" was invented by Andreas Ahlers (Westendorf, Germany), Sebastian Simon (Buchloe Lindenberg, Germany), Ramona Prem (Untermeitingen, Germany), Ralf Willner (Tussenhausen, Germany) and Sarah Freudling (Augsburg, Germany).
According to the abstract* released by the U.S. Patent & Trademark Office: "A fire protection element containing a layered body can be utilized for sealing passage openings in components, such as building components, through which conduits are guided. A method can be used for producing the fire protection element. The fire pro...