ALEXANDRIA, Va., July 3 -- United States Patent no. 12,343,423, issued on July 1, was assigned to The Procter & Gamble Co. (Cincinnati).
"Dissolvable solid article containing preservatives" was invented by Ian-Ling Lim (Singapore), Kai Wei Kelvin Lee (Singapore), Shikhar Gupta (Singapore), Minoru Kobayashi (Singapore), Toshiyuki Okada (Singapore) and Robert Wayne Glenn Jr. (Singapore).
According to the abstract* released by the U.S. Patent & Trademark Office: "A dissolvable solid article, comprising: water soluble polymer; a surfactant; at least one selected from diaminocarboxylic acid chelants and salts thereof; at least one selected from aromatic carboxylic acids and salts thereof; a phenolic derivative; at least one selected from Alpha...