ALEXANDRIA, Va., Nov. 11 -- United States Patent no. 12,465,137, issued on Nov. 11, was assigned to Kao USA Inc. (Cincinnati).
"Handle for brush head" was invented by Yanbo Zhu (Sharonville, Ohio) and Monica L. Oltmanns (Milford, Ohio).
According to the abstract* released by the U.S. Patent & Trademark Office: "A handle for attachment to a brush head includes a first section that has a frustoconical profile spanning from a proximal plane to a first distal plane, for allowing a finger of a hand of a person to rest. The frustoconical profile increases in width in a 360deg direction along an oblique axis between the proximal plane and the first distal plane. A terminal point of the handle is aligned with a plate of the brush head when the ha...