ALEXANDRIA, Va., April 21 -- United States Patent no. 12,605,229, issued on April 21, was assigned to KING SAUD UNIVERSITY (Riyadh, Saudi Arabia).

"Dental apparatus including a prop and a rubber dam and a method of using the same" was invented by Mohammed Hazaa Alshamrani (Riyadh, Saudi Arabia).

According to the abstract* released by the U.S. Patent & Trademark Office: "A dental apparatus includes a body made of a first elastomeric material; and a reinforcing member made of a stiffer, second elastomeric material, and a rubber dam covering a through opening in a base of the body. The body of the dental apparatus includes the base, a first plurality of sidewalls protruding from a first side surface of the base and a second plurality of side...