ALEXANDRIA, Va., July 15 -- United States Patent no. 12,662,242, issued on June 23, was assigned to N.M.B MEDICAL APPLICATIONS LTD (Herzliya, Israel).

"System, assemblies and methods for mechanical-thrust power conversion multifans" was invented by Oren Globerman (Kfar Shmaryahu, Israel) and Mordechay Beyar (Tel Aviv, Israel).

According to the abstract* released by the U.S. Patent & Trademark Office: "A multi-rotor system for providing air thrust is disclosed comprising at least one multi-rotor assembly. The multi-rotor assembly comprising at least two rotors rotatable about a common axis wherein the outer radius of a first rotor is substantially similar to the inner radius of the second rotor. An airborne vehicle is also disclosed that i...