ALEXANDRIA, Va., Oct. 28 -- United States Patent no. 12,456,565, issued on Oct. 28, was assigned to MYNEIP B.V. (Harderwijk, Netherlands).
"Ferrofluid" was invented by Piotr Jakub Glazer (Delft, Netherlands), Shriya Reddy Paida (Rotterdam, Netherlands) and Peter Carlo Rem (Rijswijk, Netherlands).
According to the abstract* released by the U.S. Patent & Trademark Office: "The invention is directed to a method and a system for producing a ferrofluid comprising providing a stock solution with Fe(II) and Fe(III); mixing the stock solution with a base to form magnetic nanoparticles and a spent solution, said method further comprising a separation step of separating the nanoparticles from the spent solution by applying a magnet to immobilize th...