US Patent Issued to KNAUF GIPS on June 2 for "Plaster formula with increased porosity" (Illinois, Wisconsin Inventors)

ALEXANDRIA, Va., June 2 -- United States Patent no. 12,643,818, issued on June 2, was assigned to KNAUF GIPS KG (Iphofen, Germany).

"Plaster formula with increased porosity" was invented by Guy L. Rosenthal (Wheaton, Ill.), Christian Huch (Gurnee, Ill.), Jeffrey F. Grussing (Trevor, Wis.) and Pamela L. Hargrove (Cary, Ill.).

According to the abstract* released by the U.S. Patent & Trademark Office: "In one aspect, a pottery plaster formulation with increased water absorption, comprising alpha stucco, continuously-calcined-in-a-kettle stucco, and a combination of Rochelle salt and one or more of the following: potassium sulfate and/or a phosphate compound. In another aspect, pottery plaster molds with increased water absorption and methods...