ALEXANDRIA, Va., June 4 -- United States Patent no. 12,320,187, issued on June 3, was assigned to JELD-WEN Inc..

"Panel frame joints, sills, and other elements of folding door systems with shootbolt system" was invented by Isidore R. Baca (Oceanside, Calif.), Timothy L. McCleery (San Diego) and Philip R. Linquist (El Cajon, Calif.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A fenestration unit configured to support a shootbolt locking system includes a panel including a panel frame with a stile member and a rail member that are attached by a corner joint. The stile and rail members are elongate and extend along a respective linear axis. The stile member is configured to receive and support at least part o...