ALEXANDRIA, Va., Sept. 24 -- United States Patent no. 12,741,444, issued on Sept. 22, was assigned to Johns Manville (Denver).
"Multi-functional acoustical foam board" was invented by Kathryn Fink Miks (Littleton, Colo.), Mark H Hartmann (Superior, Colo.), Matthew George Girolmo (Lakewood, Colo.) and Francis John Babineau Jr. (Parker, Colo.).
According to the abstract* released by the U.S. Patent & Trademark Office: "An insulation component, comprising a first foam layer having a first density and a second foam layer coupled to the first foam layer. The second foam layer has a second density less than the first density. The first and second foam layers comprise a similar material. The insulation component includes an average sound absorpt...