US Patent Issued to ECOLAB USA on March 17 for "Detergent composition and methods of preventing aluminum discoloration" (Minnesota Inventors)

ALEXANDRIA, Va., March 17 -- United States Patent no. 12,577,501, issued on March 17, was assigned to ECOLAB USA INC. (Saint Paul, Minn.).

"Detergent composition and methods of preventing aluminum discoloration" was invented by John Mansergh (Saint Paul, Minn.), Lisa M. Sanders (Saint Paul, Minn.) and Carter M. Silvernail (Saint Paul, Minn.).

According to the abstract* released by the U.S. Patent & Trademark Office: "Detergent compositions designed to prevent aluminum discoloration while providing high cleaning performance on soils and stains are disclosed. Detergent compositions substantially free of nitrilotriacetic acid (NTA) are disclosed. Methods of using the detergent compositions are also disclosed."

The patent was filed on Oct. 5...