ALEXANDRIA, Va., May 26 -- United States Patent no. 12,636,136, issued on May 26, was assigned to Colgate-Palmolive Co. (New York).
"Oral care implement and refill head thereof" was invented by Jiang Zhou (Yangzhou City, China), Yanmei Ji (Jiangsu, China) and Wen Jin Xi (Shanghai).
According to the abstract* released by the U.S. Patent & Trademark Office: "An oral care refill head (300), the oral care refill head (300) may be detachably coupled to a handle (200). The handle (200) may include a stem (250) that is received within a connection cavity (326) of the oral care refill head (300). The stem (250) and the connection cavity (326) may have specific geometries and structures to ensure an adequate coupling therebetween. An oral care imp...