US Patent Issued to Ecolab USA on Nov. 11 for "Verification of cleaning processes with electronically readable coded coupon" (Minnesota Inventors)

ALEXANDRIA, Va., Nov. 11 -- United States Patent no. 12,465,954, issued on Nov. 11, was assigned to Ecolab USA Inc. (St. Paul, Minn.).

"Verification of cleaning processes with electronically readable coded coupon" was invented by Paul R. Kraus (Apple Valley, Minn.) and Rachel Marie McGinness (Rosemount, Minn.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A soil-based coupon having an electronically readable verification code printed thereon is used for verification of soil removal by a cleaning process. The coupon includes a soil overlay covering the verification code. The verification code is at least partially revealed by removal of all or part of the soil overlay during the cleaning process. If the data ...