ALEXANDRIA, Va., July 9 -- United States Patent no. 12,352,098, issued on July 8, was assigned to Endura Products LLC (Colfax, N.C.).
"Passive door bolt assembly" was invented by Adam Kendall (Burlington, N.C.) and Tomasz Jaskiewicz (Oak Ridge, N.C.).
According to the abstract* released by the U.S. Patent & Trademark Office: "A bolt assembly for securing a passive door panel relative to an entryway frame. The bolt assembly has a base to be fixedly mounted relative to the passive door panel, a catch attached to the base with a leaf spring to deflect relative to the base, and a bolt which is able to translate relative to the base between a retracted position and an extended position for securing the passive door panel. The bolt is biased to...