US Patent Issued to SAINT-GOBAIN ISOVER on June 16 for "Method for improving the airtightness of buildings using a biopolymer-based membrane" (French Inventors)

ALEXANDRIA, Va., June 16 -- United States Patent no. 12,654,139, issued on June 16, was assigned to SAINT-GOBAIN ISOVER (Courbevoie, France).

"Method for improving the airtightness of buildings using a biopolymer-based membrane" was invented by Marion Chenal (Montreuil, France) and Joel Azevedo (Marcq en Baroeul, France).

According to the abstract* released by the U.S. Patent & Trademark Office: "A method for improving the airtightness of a building or a room in a building, includes using a vapor barrier membrane on the inner face of the walls of the building or the room in the building, wherein the vapor barrier membrane is a humidity-regulating membrane including an active portion which includes a middle layer having a thickness of 2 mi...