11.11.05
Patent No. US 6,444,636 B1: Colgate-Palmolive earned a patent for a liquid dish cleaning composition with a sulfonate surfactant alkali metal ammonium or alkaline earth metal salt; a sulfate surfactant alkali metal or ammonium salt; magnesium sulfate heptahydrate; hydrogen peroxide; a proton donating agent; glycol ether; polyethylene glycol and water.