ALEXANDRIA, Va., July 16 -- United States Patent no. 12,357,984, issued on July 15, was assigned to ORGANO Corp. (Tokyo).

"Organic solvent purification method and purification system" was invented by Ryosuke Terashi (Tokyo) and Kyosuke Yamada (Tokyo).

According to the abstract* released by the U.S. Patent & Trademark Office: "A purification method for separating and purifying an organic solvent from a liquid mixture of an organic solvent and water, the organic solvent having a boiling point of more than 100deg C. at 1 atm, includes the steps of: passing the liquid mixture through a first ion exchange device; supplying the liquid mixture discharged from the first ion exchange device to a pervaporation device to selectively separate water c...