ALEXANDRIA, Va., June 12 -- United States Patent no. 12,297,368, issued on May 13, was assigned to SWIMC LLC (Cleveland).
"Dirt pick-up resistant composition" was invented by Robert Sandoval (Crystal Lake, Ill.), James Harris (Crystal Lake, Ill.), Mary Jane Hibben (Elburn, Ill.), Andrew Balgeman (Woodstock, Ill.), Christopher Shaffer (Saint Paul, Minn.), Glenn Frazee (Twin Lakes, Wis.) and Michael Wildman (Hoffman Estates, Ill.).
According to the abstract* released by the U.S. Patent & Trademark Office: "Water-based compositions that are resistant to dirt pickup, efflorescence, tannin bleed-through and surfactant leaching are described. The water-based composition includes a latex or water-dispersible polymer and a non-VOC UV-VIS (prefera...