ALEXANDRIA, Va., Sept. 30 -- United States Patent no. 12,428,836, issued on Sept. 30, was assigned to CEMCO LLC (City of Industry, Calif.).
"Fire-rated wall construction product" was invented by Donald Anthony Pilz (Livermore, Calif.) and Eric Larson (City of Industry, Calif.).
According to the abstract* released by the U.S. Patent & Trademark Office: "Fire-rated wall construction components and wall systems for use in building construction. Embodiments can include tracks for holding studs which incorporate various geometries capable of receiving fire-retardant material, including but not limited to intumescent material. The fire-retardant material can be attached to compressible backer rods inserted within deflection gaps in the wall sys...