ALEXANDRIA, Va., June 19 -- United States Patent no. 12,329,998, issued on June 17, was assigned to BOSS PRODUCTS (AUSTRALIA) PTY LTD (Taren Point, Australia).
"Passive fire protection device" was invented by Mark Prior (Taren Point, Australia).
According to the abstract* released by the U.S. Patent & Trademark Office: "A firestop has a housing with a first tubular part that defines a first longitudinal end of the housing, and a second tubular part that defines a second longitudinal end of the housing. A passageway extends between the first and second longitudinal ends, is defined by at least the first and second tubular parts. When the firestop is installed in a building, the service components are to extend through the passageway. The f...