US Patent Issued to Advanced Building Products on Oct. 7 for "Sound-deadening drainage mat" (Maine Inventor)

ALEXANDRIA, Va., Oct. 8 -- United States Patent no. 12,435,508, issued on Oct. 7, was assigned to Advanced Building Products Inc. (Sanford, Maine).

"Sound-deadening drainage mat" was invented by Keith A. Lolley (Sanford, Maine).

According to the abstract* released by the U.S. Patent & Trademark Office: "A method for reducing sound transmission through a building wall includes placing a sound-deadening and/or thermally insulative drainage mat between an exterior wall cladding and an interior framing system. The sound-deadening and/or thermally insulative drainage mat including: a water or moisture permeable filter layer, an entangled net adjacent and joined to the filter layer, and a sound-deadening and/or thermally insulative layer adjace...