ALEXANDRIA, Va., Sept. 23 -- United States Patent no. 12,420,301, issued on Sept. 23, was assigned to The Boeing Co. (Chicago).

"Ultrasonic injection device" was invented by Jonathan Young Ahn (Seattle), Shane E. Arthur (Kirkland, Wash.), Daniel J. Cowan (North Charleston, S.C.) and Barton Stevens (Summerville, S.C.).

According to the abstract* released by the U.S. Patent & Trademark Office: "An ultrasonic injection device and methods of use are presented. The ultrasonic injection device comprises a housing, an injection nozzle attached to the housing, an ultrasonic vibration generator attached to the housing, and a pressure applicator. The injection nozzle has a number of openings configured to dispense a fluid. The ultrasonic vibration ...