ALEXANDRIA, Va., June 19 -- United States Patent no. 12,331,571, issued on June 17, was assigned to VKR Holding A/S (Denmark).

"Roof window with a hinge assembly comprising a hinge unit and a coupling unit configured to assume at least one intermediate position and a final position" was invented by Lasse Vinther Hede (Kobenhavn K, Denmark) and Niels Henrik Toft-Jensen (Soborg, Denmark).

According to the abstract* released by the U.S. Patent & Trademark Office: "In the roof window, the hinge assembly (9) comprises a coupling unit (95) connected to or connectable to the frame (2) and configured to be connected to the hinge unit (91) in the mounted condition of the roof window (1). In an installation condition of the roof window (1), the hin...