ALEXANDRIA, Va., Aug. 18 -- United States Patent no. 12,708,731, issued on Aug. 18, was assigned to Loewenstein Medical Technology S.A. (Luxembourg).

"Breathing mask with coupling elements for head strap" was invented by Arnold Frerichs (Buxtehude, Germany), Martin Bechtel (Winsen/Luhe, Germany), Martin Eifler (Glueckstadt, Germany) and Joachim Gardein (Icod de los Vinos, Spain).

According to the abstract* released by the U.S. Patent & Trademark Office: "The invention relates to a respiratory mask of modular construction. The main components are reduced to four parts and are provided by the mask body, the forehead support, the mask bead and the attachment piece. The design, according to the invention, of the outflow structure between mask...