ALEXANDRIA, Va., April 15 -- United States Patent no. 12,599,223, issued on April 14, was assigned to BRIDGE CORP. (Paju-si, South Korea).
"Brushing guide elastic toothbrush and elastic restoration mechanism" was invented by Nae Yoon Choi (Goyang-si, South Korea) and Young Gun Hong (Seoul, South Korea).
According to the abstract* released by the U.S. Patent & Trademark Office: "The present invention relates to a brushing guide elastic toothbrush comprising: a toothbrush head having bristles provided on the outer circumferential surface of one side in the longitudinal direction; a toothbrush handle connected to the rear end of the toothbrush head in the longitudinal direction and extending in one direction such that a user can hold the too...