ALEXANDRIA, Va., Dec. 2 -- United States Patent no. 12,489,239, issued on Dec. 2, was assigned to AMPHENOL-TUCHEL ELECTRONICS GMBH (Heilbronn, Germany).

"Locking zone for a plug contact element" was invented by Claus Dullin (Bad Rappenau, Germany).

According to the abstract* released by the U.S. Patent & Trademark Office: "The invention relates to a locking zone for a plug contact element with a contact blade for producing an electrically conductive connection, having at least one first and one second locking element, wherein the first locking element is formed by a tongue and the second locking element is formed by a recess, the elements of the locking zone being geometrically matched to one another such that the tongue can engage in the...