ALEXANDRIA, Va., Sept. 30 -- United States Patent no. 12,428,904, issued on Sept. 30, was assigned to SAINT-GOBAIN GLASS FRANCE (Courbevoie, France).

"Spacer for insulated glass units" was invented by Hans-Werner Kuster (Aachen, Germany), Christopher Marjan (Aachen, Germany) and Walter Schreiber (Aachen, Germany).

According to the abstract* released by the U.S. Patent & Trademark Office: "A spacer for insulated glass units includes a main body co-extruded from first and second plastics, the second plastic having lower thermal conductivity and higher flexibility than the first plastic. The main body includes first and second side walls arranged parallel to each other, a glazing interior wall connecting to the side walls, an outer wall, whi...