US Patent Issued to Ovivo on May 19 for "Acoustic particle counter for nanoparticles in liquids" (French, Swiss, German Inventors)

ALEXANDRIA, Va., May 19 -- United States Patent no. 12,631,541, issued on May 19, was assigned to Ovivo Inc. (Montreal).

"Acoustic particle counter for nanoparticles in liquids" was invented by Najib Alia (Weil-am-Rhein, Germany), Ian Briggs (Basel, Switzerland) and Philippe Rychen (Muespach-le-haut, France).

According to the abstract* released by the U.S. Patent & Trademark Office: "In semiconductor manufacture requiring ultra high purity water, particles of specified sizes are detected using acoustic particle detection capable of detecting nanoparticles. A sensor unit receives a flow of water, with the pressure and rate of flow to the sensor controlled closely. In each sensor unit is a measurement cell to receive a continuous flow of wa...