ALEXANDRIA, Va., Feb. 26 -- United States Patent no. 12,235,255, issued on Feb. 25, was assigned to HACH LANGE GMBH (Berlin).
"Method of determining chemical oxygen demand (COD) for high chloride samples" was invented by Isabel Hunig (Dusseldorf, Germany), Carsten Schulz (Dormagen, Germany), Helga Guthmann (Grevenbroich, Germany) and Ralf Kloos (Schwerte, Germany).
According to the abstract* released by the U.S. Patent & Trademark Office: "The present invention provides a method of determining chemical oxygen demand (COD) for a sample with a high concentration of chloride. The method includes obtaining the sample, determining a concentration of chloride in the sample to obtain a known concentration of chloride in the sample, dosing an amo...