ALEXANDRIA, Va., Oct. 21 -- United States Patent no. 12,441,961, issued on Oct. 14, was assigned to The Procter & Gamble Co. (Cincinnati).
"Household cleaning composition" was invented by Pieter Jan Maria Saveyn (Heusden, Belgium), Mark Robert Sivik (Mason, Ohio) and Evelyne Johanna Lutgarde Van Hecke (Bachte-Maria-Leerne, Belgium).
According to the abstract* released by the U.S. Patent & Trademark Office: "The need for a liquid hand-dishwashing composition having good phase stability and finished product viscosity which provides improved sudsing volume and longevity when washing in the presence of greasy soil, is met when the composition is formulated with from about 1.0% to about 50% of a sudsing surfactant system and a polyvinyl alcoho...