ALEXANDRIA, Va., Feb. 11 -- United States Patent no. 12,544,512, issued on Feb. 10, was assigned to L'OREAL (Paris).
"Needleless injection device" was invented by Flavie Gillant (Chevilly LaRue, France) and Lien Planard-Luong (Chevilly LaRue, France).
According to the abstract* released by the U.S. Patent & Trademark Office: "A needleless injection device including a piston moved by at least one electromagnetic actuator fed with electric current, the actuator including a stationary structure magnetically interacting with a mobile element in order to exert a force thereon during the injection, one at least from the mobile element and from the stationary structure having, by design, magnetic properties which vary in the direction of movemen...