ALEXANDRIA, Va., Dec. 31 -- United States Patent no. 12,509,227, issued on Dec. 30, was assigned to Wing Aviation LLC (Palo Alto, Calif.).

"Package retrieval system with channel to engage payload retriever" was invented by Andre Prager (Sunnyvale, Calif.), Jim Schmalzried (San Jose, Calif.) and Jasper Lewin (Mountain View, Calif.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A payload retrieval apparatus is provided including a channel having a first end and a second end provided with a curved portion, wherein the channel has a tether slot therein and is configured to receive a payload retriever attached to a tether suspended from a UAV; and a payload holder positioned at the second end of the channel on th...