ALEXANDRIA, Va., Sept. 30 -- United States Patent no. 12,428,318, issued on Sept. 30, was assigned to ECOLAB USA INC. (Saint Paul, Minn.).

"Enhanced foam removal of total suspended solids and multiply charged cations from aqueous or aqueous/oil mixed phase via increased viscoelasticity" was invented by Victor Fuk-Pong Man (Saint Paul, Minn.) and Michael Charles DeNoma (Saint Paul, Minn.).

According to the abstract* released by the U.S. Patent & Trademark Office: "The present invention provides improved methods for purifying and/or removing multiply charged cations and suspended solids from water. In particular the process relates to an additive composition that has the appropriate surfactant characteristics for effectively removing multip...