ALEXANDRIA, Va., Dec. 31 -- United States Patent no. 12,508,666, issued on Dec. 30, was assigned to Telsonic Holding AG (Bronschhofen, Switzerland).

"Ultrasonic booster and device for processing workpieces" was invented by Peter Solenthaler (St. Margarethen, Switzerland), Albert Buttiker (Mosnang, Switzerland) and Pascal Buchel (Sirnach, Switzerland).

According to the abstract* released by the U.S. Patent & Trademark Office: "The invention relates to an ultrasonic booster (1) for a sonotrode (30) for processing workpieces (W) with ultrasonic vibrations, having a booster body (10). Longitudinal vibrations (SL) are introduced into the booster body (10) on a sound introduction side (11) having a first end side (12). A conversion structure (1...