ALEXANDRIA, Va., March 19 -- United States Patent no. 12,252,251, issued on March 18, was assigned to Flytrex Aviation Ltd. (Tel Aviv, Israel).

"Payload release apparatus for unmanned aerial vehicle" was invented by Rotem Izchak Levy (Shlomi, Israel), Nadav Meir (Tel Aviv, Israel), Aviram Klaiman (Kfar Saba, Israel) and Tomer Gilad (Hod Hasharon, Israel).

According to the abstract* released by the U.S. Patent & Trademark Office: "A payload release apparatus (PRA) is configured to expel payload efficiently at a delivery location. In an embodiment, the PRA includes a top portion, the top portion including a connector adapted to connect to a first end of a tether; a hook portion connected to the top portion, the hook portion including: a sha...