ALEXANDRIA, Va., March 19 -- United States Patent no. 12,252,673, issued on March 18, was assigned to KOREX CANADA COMPANY (Ontario, Canada).
"Concentrated glass cleaning compositions in unit dose packets or pouches" was invented by Douglas Robert Watson (Toronto) and Sanford Pensler (Grosse Pointe Park, Mich.).
According to the abstract* released by the U.S. Patent & Trademark Office: "A unit dose glass cleaner concentrate product includes from 5 grams to 50 grams of a concentrated glass cleaning composition encased in a water soluble film. The concentrated glass cleaning composition includes at least one cleaning solvent and at least one surfactant. The total weight percentage of the cleaning solvents and surfactants, expressed on an an...