ALEXANDRIA, Va., March 26 -- United States Patent no. 12,257,935, issued on March 25, was assigned to MONAHAN PRODUCTS LLC (Rockland, Mass.).

"Car seat adjustable headrest mechanism" was invented by Manpreet Singh Sokhi (Attleboro, Mass.), Robert Scott Anderson (Narvon, Pa.) and Stephen Alan Kender (Hingham, Mass.).

According to the abstract* released by the U.S. Patent & Trademark Office: "According to at least one aspect of the present disclosure a car seat having an adjustable headrest is disclosed. The car seat comprises a shell; an adjustment portion coupled to the shell, the adjustment portion having a plurality of grooves; a headrest portion slidably coupled to the adjustment portion; at least one prong coupled to the headrest port...