ALEXANDRIA, Va., Aug. 12 -- United States Patent no. 12,383,381, issued on Aug. 12, was assigned to TRI Dental Implants Int. AG (Huenenberg, Switzerland).
"Dental implant, superstructure, and dental prothesis" was invented by Sandro Venanzoni (Zurich), Rafael Perez (Freiburg, Germany), Holger Kast (Huenenberg, Switzerland) and Ronald Jung (Herrliberg, Switzerland).
According to the abstract* released by the U.S. Patent & Trademark Office: "Dental implant and superstructure each with an interface that allows direct attachment of the superstructure to the dental implant without the use of an abutment. The dental implant comprises an anti-rotation element that is arranged in the opening and is configured to prevent the superstructure from ro...