ALEXANDRIA, Va., March 12 -- United States Patent no. 12,246,834, issued on March 11, was assigned to International Business Machines Corp. (Armonk, N.Y.).

"Elimination of air flow interference for mid-air package transfers" was invented by Sarbajit K. Rakshit (Kolkata, India).

According to the abstract* released by the U.S. Patent & Trademark Office: "A method for stabilizing drones performing a mid-air package transfer. One or more processors detecting the proximity of a second drone to a first drone. Interference of air pressure between rotors of the first drone and rotors of the second drone is detected by data from sensors included on the first and second drone. Positions of the rotors of the first drone are adjusted by moving rotor ...