ALEXANDRIA, Va., July 28 -- United States Patent no. 12,693,261, issued on July 28, was assigned to Hach Co. (Loveland, Colo.).

"Dynamic end-point total organic fluoride measurement" was invented by Vishnu Vardhanan Rajasekharan (Fort Collins, Colo.), Matthew Ryan Salzer (Loveland, Colo.), Russell Young (Fort Collins, Colo.), Benjamin James Walter (Fort Collins, Colo.) and Jorge Gomez (Fort Collins, Colo.).

According to the abstract* released by the U.S. Patent & Trademark Office: "An embodiment provides a method for measuring an amount of total organic fluoride content of a PFAS containing sample, including: placing a sample comprising a PFAS compound in a measurement device, wherein the measurement device comprises an oxidation cell and...