ALEXANDRIA, Va., Feb. 11 -- United States Patent no. 12,546,636, issued on Feb. 10, was assigned to DH Technologies Development Pte. Ltd. (Singapore).

"Acoustic control and characterization of sampling interface" was invented by Gary J. Van Berkel (Oak Ridge, Tenn.).

According to the abstract* released by the U.S. Patent & Trademark Office: "Disclosed are methods and systems that can detect, monitor, adjust, and optimize fluid dynamic conditions within a sampling system comprising a transport capillary (e.g., an open port interface). The methods and systems detect an acoustic signal within the sampling system and, based on characteristics of the detected acoustic signal, adjust flow rate conditions of the liquid and/or airflow in the samp...