ALEXANDRIA, Va., Jan. 20 -- United States Patent no. 12,527,602, issued on Jan. 20.
"Operational optimization of closure thread form load and stab flank slope angles" was invented by Roger P. Jackson (Prairie Village, Kan.) and James L. Surber (Kansas City, Kan.).
According to the abstract* released by the U.S. Patent & Trademark Office: "A method for securing an elongate rod to a spinal fixation structure having a receiver and a threaded closure. The method includes providing the elongate rod, the receiver, and the closure. The closure includes a thread form having a stab flank, a loading flank, an outer crest surface with a crest height, and a root surface. The thread form also includes a base height that is greater than the crest heigh...