ALEXANDRIA, Va., Oct. 27 -- United States Patent no. 12,773,800, issued on Oct. 27, was assigned to Edgewell Personal Care Brands LLC (Chesterfield, Mo.).

"Hair trimmer with pivotal head, and locking mechanism therefor" was invented by Jeffrey Wonderley (Fort Defiance, Va.) and Paul Dansreau (Shelton, Conn.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A powered hair trimmer has a fixed and moving toothed blade arrangement supported in a pivotal head that is pivotal relative to the housing of the handle of the device, about an axis extending in the direction of reciprocal movement of the moving blade. The pivotal head is pivotal through a series of predetermined positions (e.g. 6 positions) and is retained ...