ALEXANDRIA, Va., June 16 -- United States Patent no. 12,305,400, issued on May 20, was assigned to WEST.NEDER.LAND. SANDWICH PANELEN B.V. (Hoek van Holland, Netherlands).
"Building panel and coupling system for such building panels" was invented by Gerrit Jan Hollaar (Hoek van Holland, Netherlands) and Michiel Van De Groenendaal (Hoek van Holland, Netherlands).
According to the abstract* released by the U.S. Patent & Trademark Office: "Coupling system (3, 30) for coupling building panels (1, 2; 31, 32) or sandwich panel comprising two cover sheets (5, 6; 33, 34, 36, 37) and a core (4, 39) of insulating material sandwiched between the two cover sheets, in particular for building a roof structure. The building panels have matching coupling ...