ALEXANDRIA, Va., July 9 -- United States Patent no. 12,351,384, issued on July 8, was assigned to ELC Management LLC (Melville, N.Y.).
"Rotary actuated dispenser" was invented by Jian Yan (Kirkland, Canada).
According to the abstract* released by the U.S. Patent & Trademark Office: "A handheld rotary actuated product dispenser having a product compartment with a screw-threaded interior wall; a piston with screw threads on the outer circumference of the piston which cooperate with the screw threads of the product compartment; a spindle of non-circular cross section that passes through the center of the piston; and a base member which facilitates rotation of the drive shaft to move the piston within the product compartment so as to dispense...