ALEXANDRIA, Va., June 12 -- United States Patent no. 12,300,481, issued on May 13, was assigned to Thermo Fisher Scientific (Bremen) GmbH (Bremen, Germany).
"Charge detection for ion accumulation control" was invented by Ralf Gunter Hartmer (Bremen, Germany), Dmitry Grinfeld (Bremen, Germany), Alexander Makarov (Bremen, Germany), Frank Czemper (Bremen, Germany) and Robert Ostermann (Bremen, Germany).
According to the abstract* released by the U.S. Patent & Trademark Office: "Provided herein are methods and systems for controlling the number of ions in a batch of ions accumulated in an ion trap. The ion trap comprises one or more detection electrodes configured to detect image current signals from ions accumulated within the ion trap. An i...