ALEXANDRIA, Va., Oct. 27 -- United States Patent no. 12,774,228, issued on Oct. 27, was assigned to Ecolab USA Inc. (Saint Paul, Minn.).
"Solid, non-phosphorous, scale and corrosion inhibitor composition for cooling water treatment" was invented by Xiao Zhang (Shanghai), Bingzhi Chen (Naperville, Ill.) and Ning Jin (Shanghai).
According to the abstract* released by the U.S. Patent & Trademark Office: "A solid, non-phosphorus water treatment composition can be used for cooling water treatment applications. The composition can include a polycarboxylic acid, a polymeric dispersant, a soluble corrosion inhibitor, and a fluorescent tracer. The composition can define a solid that is devoid of phosphorus and has a pH effective such that, when th...