ALEXANDRIA, Va., June 4 -- United States Patent no. 12,318,258, issued on June 3, was assigned to STRAUMANN HOLDING AG (Basel, Switzerland).

"Dental drill guiding system" was invented by Simon Zollinger (Basel, Switzerland), Sven Schneider (Basel, Switzerland), Alain Hedinger (Basel, Switzerland) and Tobias Brechbuehl (Basel, Switzerland).

According to the abstract* released by the U.S. Patent & Trademark Office: "A dental drill guiding system includes a drill guide including a hollow tube having an exterior surface and a guide sleeve including an internal surface defining a through bore configured to receive the hollow tube of the drill guide. The exterior surface of the hollow tube and guide sleeve's internal surface have complementary ...