ALEXANDRIA, Va., Jan. 13 -- United States Patent no. 12,521,899, issued on Jan. 13, was assigned to KONINKLIJKE PHILIPS N.V. (Eindhoven, Netherlands).
"Hair-cutting unit for use in a hair-cutting appliance" was invented by Mike Van Diest (Groningen, Netherlands), John Pragt (De Wilgen, Netherlands), Martijn Dirk Klein Horsman (Kenmore, Wash.) and Michael Reece Jenkins (Amsterdam).
According to the abstract* released by the U.S. Patent & Trademark Office: "A hair-cutting unit (4) for use in a hair-cutting appliance comprises an external cutting member (5) having hair-entry openings in a cutting track surface (58), an internal cutting member (6) having at least one hair-cutting element and being movable with respect to the external cutting ...