ALEXANDRIA, Va., Aug. 26 -- United States Patent no. 12,397,526, issued on Aug. 26, was assigned to MAPEI S.P.A. (Milan).
"Acoustic wave transformation and attenuation membrane" was invented by Philip J. Hipol (Deerfield Beach, Fla.), Betiana Acha (Deerfield Beach, Fla.) and Louis L. Grube (Deerfield Beach, Fla.).
According to the abstract* released by the U.S. Patent & Trademark Office: "Methods and apparatuses for reducing the transmission of unwanted sound and vibration energy generated by dynamic and/or impact loads through floors in multi-story buildings. This may be accomplished using an acoustic wave transformation and attenuation sound proofing membrane including an acoustic wave transformation layer, an acoustic absorption layer,...