ALEXANDRIA, Va., Sept. 3 -- United States Patent no. 12,403,426, issued on Sept. 2, was assigned to Thermo Fisher Scientific (Bremen) GmbH (Bremen, Germany).
"Isotope ratio measurement" was invented by Nils Stobener (Bremen, Germany), Jens Radke (Bremen, Germany), Johannes Schwieters (Bremen, Germany) and Holger Jeglinski (Bremen, Germany).
According to the abstract* released by the U.S. Patent & Trademark Office: "An isotope ratio spectrometer is operated for measurement of a sample. First isotope ratios and first signal intensities are measured for a reference in the spectrometer, over a first measurement time period. A first relationship comprising a relationship between the first isotope ratios and the first signal intensities is dete...