ALEXANDRIA, Va., Nov. 6 -- United States Patent no. 12,459,231, issued on Nov. 4, was assigned to Saint-Gobain Placo SAS (Courbevoie, France).

"Building boards with increased surface strength" was invented by Robin Daniel Fisher (Loughborough, Great Britain), Devang Umesh Khariwala (Hudson, Mass.), Jeffrey Hamilton Peet (Southborough, Mass.) and Peter Mayer (Tampa, Fla.).

According to the abstract* released by the U.S. Patent & Trademark Office: "Disclosed is a building board construction with increased surface strength. More specifically, increased nail pull strength is achieved via the application of an external surface coating. The surface coating is ideally applied to a paper faced gypsum building board. In one possible embodiment, th...