US Patent Issued to Hilti on Nov. 11 for "Air, acoustic and/or fire sealing sleeve insert and air, acoustic and/or fire sealing device" (American, German Inventors)

ALEXANDRIA, Va., Nov. 11 -- United States Patent no. 12,467,559, issued on Nov. 11, was assigned to Hilti AG (Schaan, Liechtenstein).

"Air, acoustic and/or fire sealing sleeve insert and air, acoustic and/or fire sealing device" was invented by Joshua Vandertook (Frisco, Texas), Herbert Munzenberger (Wiesbaden, Germany), Tamara Sarg (Dallas), Chad Stroike (Tulsa, Okla.), Lukas Schwaiger (The Colony, Texas) and Kejriwal Akhil (Dallas).

According to the abstract* released by the U.S. Patent & Trademark Office: "A fire-protection apparatus contains a housing with a passage, and an insert containing a plurality of sections made of a flexible material."

The patent was filed on June 16, 2021, under Application No. 17/348,952.

*For further inf...