ALEXANDRIA, Va., July 15 -- United States Patent no. 12,662,499, issued on June 23, was assigned to Agency For Science, Technology And Research (Singapore).
"Phosphorus compounds and methods thereof" was invented by Martin Van Meurs (Jurong Island, Singapore), James David Nobbs (Jurong Island, Singapore) and Sigit Sugiarto (Jurong Island, Singapore).
According to the abstract* released by the U.S. Patent & Trademark Office: "The disclosure concerns phosphorus compounds of formula (I), (II) and (III) and methods of synthesising these compounds. The phosphorus compound can be a cyclic phosphorus compound. The method comprises reacting a compound having two Michael acceptor groups with a hypophosphite ester, acid, salt or solvate thereof and...