ALEXANDRIA, Va., July 30 -- United States Patent no. 12,370,705, issued on July 29, was assigned to WAHL CLIPPER Corp. (Sterling, Ill.).

"Hair clipper bladeset with variable rake angle array tooth geometry" was invented by Christine Bushman (Sterling, Ill.) and Michael Holmes (Sterling, Ill.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A bladeset for a hair clipper has a stationary blade with a plurality of stationary blade teeth defined along a stationary blade lateral axis and includes first and second outermost stationary blade teeth. A stationary blade midpoint is defined between the first and second outermost stationary blade teeth. The bladeset also has a moving blade with a plurality of moving blade...